--- title: "The Advantages of High-Precision CNC Turning for Cylindrical Components: Capabilities, Tolerances, and Multi-Axis Turn-Mill for Aerospace and Defense" description: "How high-precision CNC turning produces truly round cylindrical aerospace and defense parts - plus/minus 0.0005 inch tolerances, concentricity, runout, multi-axis turn-mill with live tooling and sub-spindles, material engineering, and CMM roundness validation." lang: en json-ld: | [ { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://www.olympusmachining.com/#organization", "name": "Olympus Machining LLC", "url": "https://www.olympusmachining.com", "logo": "https://storage.googleapis.com/gpt-engineer-file-uploads/SFKHg3gA6NVscESUCStAZeugW5B3/social-images/social-1762640845290-Olympus-Machining-Gear-Logo_Logo-ONLY.png", "description": "Olympus Machining LLC is a precision CNC machining shop located in Hanover, Pennsylvania, providing CNC milling and CNC turning services for OEMs and manufacturers nationwide.", "telephone": "+17176345094", "email": "info@olympusmachining.com", "address": { "@type": "PostalAddress", "streetAddress": "639 Frederick St, Suite 1", "addressLocality": "Hanover", "addressRegion": "PA", "postalCode": "17331", "addressCountry": "US" }, "sameAs": [ "https://www.google.com/maps/place/Olympus+Machining+LLC" ], "hasCredential": [ { "@type": "EducationalOccupationalCredential", "name": "ITAR Registration — DDTC", "credentialCategory": "Government Registration", "recognizedBy": { "@type": "Organization", "name": "U.S. Directorate of Defense Trade Controls (DDTC)" } }, { "@type": "EducationalOccupationalCredential", "name": "CMMC Level 1 Compliance", "credentialCategory": "Compliance Certification" } ] }, { "@type": [ "LocalBusiness", "ManufacturingBusiness" ], "@id": "https://www.olympusmachining.com/#localbusiness", "name": "Olympus Machining LLC", "image": "https://storage.googleapis.com/gpt-engineer-file-uploads/SFKHg3gA6NVscESUCStAZeugW5B3/social-images/social-1762640845290-Olympus-Machining-Gear-Logo_Logo-ONLY.png", "description": "Olympus Machining LLC is a precision CNC machining shop located in Hanover, Pennsylvania. 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Those results depend on thermal stabilization, in-process tool wear compensation, and machining critical diameters in a single setup." } }, { "@type": "Question", "name": "What machine configurations or axis setups do you use for complex cylindrical parts?", "acceptedAnswer": { "@type": "Answer", "text": "Complex cylindrical parts run on a Chien Wei CWB-450-CNC turn-mill with live tooling, C-axis positioning, Y-axis turret travel, and a synchronized sub-spindle. That configuration allows OD and ID turning, radial and axial drilling and tapping, flats, and back-face operations in one continuous setup." } }, { "@type": "Question", "name": "Which industries or applications are best suited to your CNC turning capabilities?", "acceptedAnswer": { "@type": "Answer", "text": "Aerospace and defense components such as shafts, spacers, bushings, valve bodies, and pressure fittings; medical device components including centrifuge rotors and instrument shafts; and industrial OEM parts with concentric diameters, O-ring grooves, and cross-holes. Defense work is ITAR-registered and CMMC Level 1 compliant." } }, { "@type": "Question", "name": "How do you maintain quality and repeatability on tight-tolerance turned parts?", "acceptedAnswer": { "@type": "Answer", "text": "Turret-mounted touch probes check critical diameters between passes so the control corrects tool offsets before the final cut. After machining, parts stabilize at 68 degrees Fahrenheit in a climate-controlled lab and are verified on a CMM with roundness profiling, backed by AS9102 Rev C first article inspection and in-process audit records." } }, { "@type": "Question", "name": "Does Olympus Machining support prototypes as well as production-scale runs?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Olympus machines single-piece prototypes and scales the same process into repeat production, carrying proven work offsets, tool libraries, probing routines, and the inspection plan forward so tolerances validated on the prototype survive the volume ramp." } }, { "@type": "Question", "name": "Why is CNC turning better than CNC milling for round or cylindrical components?", "acceptedAnswer": { "@type": "Answer", "text": "On a lathe the spindle mechanically defines the axis of rotation, so roundness is limited by spindle bearing runout, often under 0.0001 inch. A mill interpolates the circle by reversing linear axes, and servo lag or backlash produces lobing or flat spots, which makes circularity tighter than 0.001 inch difficult to sustain across a production run." } }, { "@type": "Question", "name": "How do you prevent tolerance stacking when machining complex features like off-axis holes or slots?", "acceptedAnswer": { "@type": "Answer", "text": "Those features are machined with live tooling on the lathe instead of moving the part to a machining center. Every unclamp-and-relocate cycle adds roughly plus/minus 0.0005 to 0.001 inch of positioning error, so keeping the part in one workholding reference, including the synchronized sub-spindle transfer, removes the stack." } }, { "@type": "Question", "name": "What material limitations or considerations do you address during high-speed turning?", "acceptedAnswer": { "@type": "Answer", "text": "Titanium traps heat at the cutting edge, so Olympus uses positive-rake geometry, reduced surface footage, and high-pressure coolant. Stainless grades work-harden, so feed rates stay heavy and constant. Inconel 718 causes notch wear, so rigid holders, ceramic or PVD-coated carbide inserts, and varying depths of cut distribute wear across the edge." } } ] }, { "@context": "https://schema.org", "@type": "HowTo", "name": "How to Evaluate a Precision CNC Turning Supplier", "description": "Seven-step buyer checklist for qualifying a precision CNC turning supplier for tight-tolerance cylindrical aerospace and defense components.", "step": [ { "@type": "HowToStep", "position": 1, "name": "Confirm the real spindle runout spec", "text": "Ask for the measured radial runout; it should be under 0.0001 inch for tenth-thousandth work." }, { "@type": "HowToStep", "position": 2, "name": "Verify live-tooling and sub-spindle capability", "text": "Parts with off-axis features should run in one setup, eliminating secondary operations and stackup." }, { "@type": "HowToStep", "position": 3, "name": "Request a capability matrix", "text": "Ask for published concentricity, runout, and surface finish limits; real shops publish real numbers." }, { "@type": "HowToStep", "position": 4, "name": "Confirm the inspection lab", "text": "Verify a climate-controlled lab with CMM verification and roundness measurement capability." }, { "@type": "HowToStep", "position": 5, "name": "Verify compliance posture", "text": "Check the AS9100D roadmap or certification plus ITAR registration and CMMC Level 1 for defense work." }, { "@type": "HowToStep", "position": 6, "name": "Ask about tool-wear compensation and in-process probing", "text": "This separates production-ready shops from prototype-only shops." }, { "@type": "HowToStep", "position": 7, "name": "Request AS9102 FAI documentation", "text": "Ask for a recent turned part with concentric diameters and cross-holes to prove the traceability stack." } ] }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "@id": "https://www.olympusmachining.com/blog/precision-cnc-turning-capabilities#breadcrumb", "itemListElement": [ { "@type": "ListItem", 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PA](/__l5e/assets-v1/9df2bd15-1491-4450-a75b-87ea8dd6a484/turning-hero.jpg) # The Advantages of High-Precision CNC Turning for Cylindrical Components: Capabilities, Tolerances, and Multi-Axis Turn-Mill for Aerospace and Defense August 19, 2026 Precision CNC Machining CNC Turning Aerospace Defense Tolerances Precision CNC Machining • CNC Turning • Aerospace & Defense Getting a cylindrical part truly round is a spindle problem, not a programming problem — and that is why turning still owns the tightest concentricity work in aerospace and defense. **Hanover, PA** — Olympus Machining LLC · [ITAR](/itar-cnc-machining-mid-atlantic-aerospace) registered · CAGE 9V9P0 · CMMC Level 1 · AS9100D In Progress. Author: Olympus Machining · Reading time: ~9 min ### At a Glance - Turning defines the axis of rotation mechanically; milling has to interpolate it, which is why circularity below 0.001″ is hard on a mill - We hold ±0.0005″ linear, 0.0005″ TIR concentricity, and 0.0003″ circular runout on high-precision turned work - Live tooling, Y-axis travel, and a sub-spindle remove the secondary setup that adds ±0.0005–0.001″ of stackup per relocation - Titanium, 17-4 PH stainless, and Inconel 718 each fail differently — heat, work hardening, and notch wear - Roundness claims need CMM and air-bearing roundness data, not a micrometer reading - 7-point buyer checklist and 8-question FAQ at the bottom of this post ### Contents 1. [CNC Turning vs. CNC Milling: GD&T for Cylindrical Workpieces](#gdt) 2. [Our CNC Turning Limits: Tolerances, Sizes, and Finishes](#limits) 3. [Multi-Axis Turning: Live Tooling, Sub-Spindles, and Error Mitigation](#multiaxis) 4. [Material Metallurgy and Tool Selection in High-Speed Turning](#materials) 5. [Inspection and Lab Validation: Proving Roundness and Real Diameters](#inspection) 6. [From Prototype to Production: How We Scale Precision Turning](#scale) 7. [7-Point Buyer Checklist](#checklist) 8. [FAQ](#faq) Getting a cylindrical part truly round and accurate means looking past basic lathe work. For aerospace, defense, and medical OEMs, these jobs are rarely simple shafts. Instead, they require a complex mix of concentric diameters, critical radial steps, off-axis cross-holes, and precise O-ring grooves. Tolerances of ±0.0005 inches push traditional machining setups past their physical limits. Hitting those numbers consistently requires a tight-tolerance setup, live tooling, and serious metrology. To get reliable, compliant parts, you must understand how geometry, material movement, and multi-axis lathe configurations interact on the shop floor. ## CNC Turning vs. CNC Milling: GD&T for Cylindrical Workpieces ``` TOOL ROTATES (MILLING) PART ROTATES (TURNING) [ spindle ] [ chuck ] | | ( cutter ) =====( part )===== | | X <---- circular ----> Y static tool interpolation path single-point cut | | roundness = f(servo lag, roundness = f(spindle backlash, axis reversal) bearing runout) ``` Engineers designing cylindrical parts face a classic manufacturing choice. You can interpolate a cylinder on a modern 5-axis mill (see our post on [5-axis CNC milling for aerospace complex geometries](/blog/5-axis-cnc-milling-aerospace-complex-geometries)), but physics still dictates the final tolerances. Everything comes down to which component spins: - **CNC Milling:** raw stock stays clamped and the spinning cutter travels in a programmed circle. Circular interpolation requires tight simultaneous coordination between linear axes. Any microscopic lag or axis backlash shows up on the finished wall as flat spots or lobing. - **CNC Turning:** the workpiece spins fast on a dedicated centerline while a static single-point tool shears away material. Because the spindle itself defines the center of rotation, roundness and concentricity are baked into the operation. For round parts, these mechanical differences directly dictate your GD&T limits, as defined in the [ASME Y14.5-2018 dimensioning and tolerancing standard](https://www.asme.org/codes-standards/find-codes-standards/y14-5-dimensioning-tolerancing) and its international counterpart, [ISO 1101 geometric tolerancing](https://www.iso.org/standard/66777.html). ### Roundness (Circularity) Turning relies on spindle bearings — high-end lathe spindles run with radial runout under 0.0001 inches. Milling a circle forces the machine to constantly reverse its X and Y axes, making circularity tighter than 0.001 inches difficult to hold over a production run. ### Concentricity and Coaxiality Step-down shafts require perfect alignment. With turning, every diameter is cut in one setup — the same chuck jaw means every diameter shares an identical centerline. Milling those features requires flips or relocations, which introduce stacking fixture errors that eat your tolerance budget fast (see our post on [aerospace machining tolerances explained](/blog/aerospace-machining-tolerances-explained)). ### Runout (Total and Circular) Total runout limits taper, wobble, and out-of-roundness across the full face of a cylinder. Turning keeps the part spinning against a rigid cutter, minimizing radial and axial runout. For high-speed rotating components like defense turbine shafts or medical centrifuge rotors, minimizing runout is the only way to prevent destructive vibration at 10,000 RPM. ## Our CNC Turning Limits: Tolerances, Sizes, and Finishes Evaluating a machine shop's CNC turning capabilities comes down to comparing your part geometry against their real-world machine limits. We hold tolerances of ±0.0005 inches on cylindrical surfaces daily, but doing this consistently requires tight control over tool wear, thermal expansion, and part deflection (see our posts on [holding tenth-thousandth tolerances](/blog/holding-tenth-thousandth-tolerances-aerospace-cnc) and [machining strategies to achieve 0.0005 inch tolerance](/blog/machining-strategies-0005-inch-tolerance)). The data below shows the actual limits of our precision turning operations for critical OEM components. Capability Metric Standard Precision High-Precision / Tight-Tolerance Technical Constraints & Variables Turn Diameter Limits 0.125″ to 12.0″ 0.050″ to 10.0″ Governed by bar feeder capacity, chuck size, and part aspect ratio to prevent deflection Maximum Part Length Up to 20.0″ Up to 15.0″ Long slender parts require tailstocks or steady rests to counteract cutting forces Linear Tolerances ±0.002″ ±0.0005″ Requires thermal stabilization of the machine casting and in-process tool wear compensation Concentricity 0.001″ TIR 0.0005″ TIR Dependent on machining critical diameters in a single setup without chuck jaw relocation Circular Runout 0.001″ 0.0003″ Governed by spindle bearing runout and collet/chuck clamping repeatability Surface Finish (Ra) 63 µin 16 µin Dictated by insert nose radius, feed rate, cutting speed, and material ductility (see our [surface finish requirements](/blog/surface-finish-requirements-tight-tolerance-cnc-machining) post) ## The Mechanics of Multi-Axis Turning: Live Tooling, Sub-Spindles, and Error Mitigation ``` MAIN SPINDLE LIVE TOOLING TURRET SUB-SPINDLE (C-axis clamp) (driven holders, Y-axis) (synchronized) [====( part )====] --> [ drill ] [ end mill ] --> [ part )====] OD / ID turn cross-holes, flats, back-face grooves, thread radial tapping ops, part-off one setup ------------------------------------------> finished part (no re-clamp, no relocation, no tolerance stack) ``` To cut complex cylindrical parts without wasting time, modern machine shops run multi-axis turning centers configured with live tooling, Y-axis travel, and sub-spindles. Traditional turning is slow. When a part needs milled slots, off-axis drilled holes, or tapped radial features, it usually has to move from a lathe to a vertical machining center. That handoff introduces two major risks: - **Setup Error Accumulation (Tolerance Stacking):** every unclamp-and-relocate step brings ±0.0005–0.001″ of positioning error. Stack that on top of cutting tolerances and the finished part slips out of spec (see our post on [traceability in aerospace and defense CNC machining](/blog/traceability-aerospace-defense-cnc-machining)). - **Increased Cycle Times and Labor Costs:** extra setups mean more physical handling, slower throughput, and higher scrap risk. ### Milling on a Lathe Live tooling swaps static turning blocks for motorized holders inside the turret. The lathe can mill, drill, and tap while the main spindle locks in place or clocks precisely on the C-axis. Adding a physical Y-axis lets the turret move perpendicular to the spindle centerline. This allows true flats, off-center holes, and complex outside-diameter profiles without spinning the workpiece. ### Transferring Parts to the Sub-Spindle A secondary sub-spindle sits directly opposite the main spindle on the same centerline. During a synchronized handshake sequence, the sub-spindle slides forward, grabs the partially machined workpiece, and holds it tight while the main spindle parts off. It then pulls back to machine the back end of the part. Since the CNC controls this transfer directly, the alignment between front and back features stays locked within tenths of a thousandth of an inch, skipping the manual secondary setup entirely. The [SME turning process overview](https://www.sme.org/technologies/articles/2020/october/cnc-turning/) covers the same tradeoff from a process-engineering perspective. ## Material Metallurgy and Tool Selection in High-Speed Turning ``` WORKPIECE ROTATION --> CUTTING TOOL --> COOLANT ( part ) | |||| spinning at SFM positive-rake high-pressure surface speed carbide insert at tool-chip | | interface v v v plastic shear + heat generation = heat evacuated at edge in the chip ``` Hitting tight tolerances on a lathe goes far beyond machine rigidity. You are fighting the metal itself. ### Titanium (Ti-6Al-4V) Titanium conducts heat poorly. The metal traps thermal energy — heat from plastic deformation cannot escape into the chip and pools at the tool edge. This thermal spike destroys inserts quickly, causing dimensional drift on longer runs. _Engineering response:_ sharp, positive-rake insert geometries to slash friction. Lowering surface footage and blasting high-pressure coolant directly at the tool-chip interface keeps the cut cool. See our [titanium CNC machining for aerospace](/blog/titanium-cnc-machining-aerospace) post. ### Stainless Steel (304, 316, 17-4 PH) These alloys work-harden fast. If a tool rubs or dwells instead of shearing clean metal, the skin turns rock-hard. _Engineering response:_ heavy, constant feed rates so the insert tip bites deep under the hardened layer left by the prior pass. Rigid setups kill micro-chatter before it starts. ### Inconel (718) Inconel stays incredibly strong when hot and is packed with abrasive carbides that chew up tooling. Hard particles grind at the depth-of-cut line, causing rapid notch wear. _Engineering response:_ rock-solid tool holders, ceramic or advanced PVD-coated carbide inserts, and constantly varying axial depths of cut to spread abrasive wear across the whole cutting edge. See our [Inconel CNC machining guide](/materials/inconel-cnc-machining-guide). For non-metallic turned components, our [Delrin (Acetal/POM) machining guide](/materials/delrin-machining-guide) covers the opposite problem — thermal expansion and burr control in ductile plastics. ## Inspection and Lab Validation: Proving Roundness and Real Diameters ``` IN-PROCESS INSPECTION --> FIRST ARTICLE --> CMM / ROUNDNESS PROFILER turret touch probe AS9102 Rev C scanning CMM probe between passes Forms 1 / 2 / 3 + air-bearing spindle | | | offset correction characteristic cylindricity, before final cut accountability lobing, polar plot | | | +--------> data packet ships with the parts <-----+ ``` A precision claim means nothing without the inspection data to back it up. Hand micrometers cannot validate complex GD&T callouts on high-precision cylindrical parts. ### In-Process Metrology We do not wait until the run is over to check our work. CNC turning centers use [turret-mounted touch probes](https://www.renishaw.com/en/turret-mounted-probes--6329) to check critical diameters between passes, letting the control adjust tool offsets before the final cut. This stops tool wear and thermal growth from pulling parts out of tolerance during long runs. ### Post-Machining Verification After cutting, parts move to our climate-controlled lab to settle at a stable 68°F (20°C). Then we prove the geometry. - **Coordinate Measuring Machines (CMMs):** scanning CMM probes map thousands of points across a turned diameter to calculate actual cylindricity, concentricity, and axial alignment back to your datums. See our [CMM inspection capabilities and reporting standards](/blog/cmm-inspection-capabilities-reporting-standards) post. - **Roundness Measurement Systems:** the part rotates on an ultra-precise air-bearing spindle while a high-resolution LVDT stylus tracks microscopic deviations, isolating the true polar profile and exposing hidden lobing per [ASME B89.3.1 roundness measurement](https://www.asme.org/codes-standards/find-codes-standards/b89-3-1-measurement-out-roundness) practice. - **Traceability and Documentation:** material certs, AS9102 first-article inspection reports (FAIRs), and complete final inspection data packets. See our [AS9102 first article inspection checklist](/blog/as9102-first-article-inspection-checklist) and [traceability in aerospace and defense CNC machining](/blog/traceability-aerospace-defense-cnc-machining) posts. ## From Prototype to Production: How We Scale Precision Turning Sourcing precision CNC turned parts requires a manufacturing partner that understands how machine kinematics, metallurgy, and quality control affect final yield. The transition from CAD file to high-volume manufacturing must preserve design tolerances at every step — see our post on [scaling CNC machining from prototype to high-volume production](/blog/scaling-cnc-machining-prototype-to-high-volume-production), and send geometry as a clean solid model using the conventions in our [STEP files for CNC machining quotes](/blog/step-files-for-cnc-machining-quotes) guide. Olympus Machining LLC in Hanover, Pennsylvania specializes in high-precision [CNC turning](/cnc-turning) and multi-axis [milling](/cnc-milling) for aerospace, defense, medical, and industrial OEMs. Our shop floor takes complex cylindrical parts from raw prototype into full production, backed by disciplined workflows and rigorous inspection. Our Chien Wei CWB-450-CNC turn-mill with live tooling and sub-spindle capability handles the multi-axis work described above, and our Haas HMM 430 5-axis machining center handles the complementary prismatic work. Design decisions made before the RFQ matter here too — our [DFM guide for aerospace CNC parts](/blog/dfm-design-for-manufacturability-aerospace-cnc-machining) covers the geometry choices that keep turned parts in single-setup territory. You can trust us with sensitive, high-consequence projects because we are ITAR-registered and CMMC Level 1 compliant (see our [ITAR CNC machining, mid-Atlantic aerospace](/itar-cnc-machining-mid-atlantic-aerospace) page). We support programs across [Maryland](/areas-served/maryland-cnc-machining), including [Aberdeen Proving Ground](/areas-served/aberdeen-proving-ground-cnc-machining) and [Letterkenny Army Depot](/areas-served/letterkenny-army-depot-cnc-machining). Our multi-axis turning centers and integrated [precision machining](/precision-cnc-machining) and CMM inspection equipment allow us to hit tight-tolerance geometries down to ±0.0005 inches on repeat. ## 7-Point Buyer Checklist: Evaluating a Precision CNC Turning Supplier 1. **Confirm the supplier's real spindle runout spec.** It should be under 0.0001″ for tenth-thousandth work — ask for the measured value, not the brochure number. 2. **Verify live-tooling and sub-spindle capability** for parts with off-axis features. It eliminates secondary setups and the stackup that comes with them. 3. **Ask for a sample capability matrix** with concentricity, runout, and surface finish limits. Real shops publish real numbers. 4. **Confirm a climate-controlled inspection lab** with CMM verification and roundness measurement capability. 5. **Verify AS9100D roadmap (or certification)** plus ITAR registration and CMMC Level 1 compliance for aerospace and defense work. 6. **Ask about tool-wear compensation and in-process probing.** This separates production-ready shops from prototype-only ones. 7. **Request AS9102 FAI documentation** on a recent turned part with concentric diameters and cross-holes. It proves the traceability stack actually works. ## Frequently Asked Questions What precision or tolerance levels can Olympus Machining hold during CNC turning? We hold ±0.002″ on standard precision turned work and ±0.0005″ on tight-tolerance features, with 0.0005″ TIR concentricity, 0.0003″ circular runout, and surface finishes down to 16 µin Ra. Those numbers depend on thermal stabilization, in-process tool wear compensation, and machining critical diameters in a single setup. What machine configurations or axis setups do you use for complex cylindrical parts? Complex cylindrical parts run on our Chien Wei CWB-450-CNC turn-mill with live tooling, C-axis positioning, Y-axis turret travel, and a synchronized sub-spindle. That configuration allows OD and ID turning, radial and axial drilling and tapping, flats, and back-face operations in one continuous setup. Which industries or applications are best suited to your CNC turning capabilities? Aerospace and defense components such as shafts, spacers, bushings, valve bodies, and pressure fittings; medical device components including centrifuge rotors and instrument shafts; and industrial OEM work with concentric diameters, O-ring grooves, and cross-holes. Our defense work is ITAR-registered and CMMC Level 1 compliant. How do you maintain quality and repeatability on tight-tolerance turned parts? Turret-mounted touch probes check critical diameters between passes so the control can correct offsets before the final cut. After machining, parts stabilize at 68°F in our inspection lab and are verified on a CMM with roundness profiling, with AS9102 Rev C first article inspection and in-process audit records for production runs. Does Olympus Machining support prototypes as well as production-scale runs? Yes. We machine single-piece prototypes and scale the same process into repeat production, carrying the proven work offsets, tool library, probing routines, and inspection plan forward so the tolerances validated on the prototype survive the volume ramp. Why is CNC turning better than CNC milling for round or cylindrical components? On a lathe the spindle mechanically defines the axis of rotation, so roundness is limited by spindle bearing runout — often under 0.0001″. A mill has to interpolate the circle by reversing linear axes, and servo lag or backlash leaves lobing or flat spots, which makes circularity tighter than 0.001″ difficult to sustain across a run. How do you prevent tolerance stacking when machining complex features like off-axis holes or slots? We machine those features with live tooling on the lathe instead of moving the part to a machining center. Every unclamp-and-relocate cycle adds roughly ±0.0005–0.001″ of positioning error, so keeping the part in one workholding reference — including the synchronized sub-spindle transfer — removes the stack entirely. What material limitations or considerations do you address during high-speed turning? Titanium traps heat at the cutting edge, so we use positive-rake geometry, reduced surface footage, and high-pressure coolant. Stainless grades work-harden, so we keep feed rates heavy and constant. Inconel 718 causes notch wear, so we use rigid holders, ceramic or PVD-coated carbide, and varying depths of cut to distribute wear. ### Olympus Machining LLC 639 Frederick St, Suite 1, Hanover, PA 17331 [(717) 634-5094](tel:+17176345094) · [info@olympusmachining.com](mailto:info@olympusmachining.com) CAGE 9V9P0 ITAR Registered CMMC Level 1 AS9100D In Progress 5.0 ★ Google (15 reviews) [View our Google Business Profile →](https://www.google.com/maps/place/Olympus+Machining+LLC) ### Have a cylindrical part with tight concentricity? Send a STEP file and Olympus Machining will tell you whether it runs single-setup on our turn-mill — and what concentricity, runout, and finish we will commit to — alongside [precision CNC machining](/precision-cnc-machining), [CNC milling](/cnc-milling), [CNC turning](/cnc-turning), and CMM-verified inspection for [Aerospace & Defense](/industries/aerospace-defense) programs. [Get a quote](/contact) [How to export a STEP file](/blog/step-files-for-cnc-machining-quotes) ## Related Articles - [CNC Milling vs. CNC Turning: Aerospace & Defense Decision Guide](/blog/cnc-milling-vs-turning-aerospace-defense-decision-guide) - [5-Axis CNC Milling for Aerospace Complex Geometries](/blog/5-axis-cnc-milling-aerospace-complex-geometries) - [Titanium CNC Machining for Aerospace](/blog/titanium-cnc-machining-aerospace) ## Related Articles [Design for Manufacturability (DFM) for Aerospace CNC Parts: How to Reduce Cost and Lead Time Before You Cut Metal ](/blog/dfm-design-for-manufacturability-aerospace-cnc-machining)[CNC Milling vs. CNC Turning for Aerospace and Defense Parts: A Decision Guide ](/blog/cnc-milling-vs-turning-aerospace-defense-decision-guide)[Titanium CNC Machining for Aerospace: Materials, Tolerances, and Why It's Different ](/blog/titanium-cnc-machining-aerospace) ## Related Capabilities from Olympus Machining [ ### Precision CNC Machining Hanover, PA precision CNC shop for tight-tolerance aerospace and defense parts. ](/precision-cnc-machining)[ ### CNC Milling Services Multi-axis precision milling for complex geometries and tight tolerances. ](/cnc-milling)[ ### CNC Turning Services Precision lathe machining for shafts, bushings, and cylindrical components. ](/cnc-turning)[ ### Surface Finish Requirements Ra, Rz, and what aerospace buyers actually need to specify. ](/blog/surface-finish-requirements-tight-tolerance-cnc-machining)[ ### Aerospace Machining Tolerances Explained How aerospace tolerance callouts drive process selection and cost. ](/blog/aerospace-machining-tolerances-explained)[ ### Holding 0.0001" Tolerances Shop-floor strategies for tenth-thousandth aerospace tolerance work. ](/blog/holding-tenth-thousandth-tolerances-aerospace-cnc)[ ### Machining Strategies for 0.0005" Tolerance Process planning and workholding for half-thou tolerance callouts. ](/blog/machining-strategies-0005-inch-tolerance)[ ### CMM Inspection Capabilities & Reporting How CMM reporting proves the tolerances your drawing calls out. ](/blog/cmm-inspection-capabilities-reporting-standards)[ ### Traceability in Aerospace & Defense CNC Material certs, lot control, and AS9100D chain of custody. ](/blog/traceability-aerospace-defense-cnc-machining)[ ### Scaling Prototype to High-Volume Production DFM handoff, tooling investment, and process qualification for OEM programs. ](/blog/scaling-cnc-machining-prototype-to-high-volume-production)[ ### AS9102 First Article Inspection Checklist Forms 1, 2, and 3 characteristic accountability on first articles. ](/blog/as9102-first-article-inspection-checklist)[ ### STEP Files for CNC Machining Quotes How to export CAD data that quotes accurately the first time. ](/blog/step-files-for-cnc-machining-quotes)[ ### Inconel CNC Machining Guide When Inconel 718 is functionally required — and what it costs to machine. ](/materials/inconel-cnc-machining-guide)[ ### Delrin (Acetal/POM) Machining Guide Low-cost precision plastic components for non-metallic applications. ](/materials/delrin-machining-guide)[ ### ITAR CNC Machining, Mid-Atlantic ITAR-registered machining for Mid-Atlantic aerospace and defense programs. ](/itar-cnc-machining-mid-atlantic-aerospace) [ ### Submit Your Project for Review Contact Olympus Machining to discuss your CNC machining requirements. ](/#contact) [CNC Milling](/cnc-milling) [CNC Turning](/cnc-turning) [Quality Assurance](/quality-assurance) [Prototype to Production](/prototype-to-production) [Industries Served](/industries-served) [Materials Machined](/materials-machined) [Robotics & Automation Machining](/robotics-automation-machining) [Precision CNC Machining](/precision-cnc-machining) [Careers](/careers) [ITAR CNC Machining for Mid-Atlantic Aerospace OEMs](/itar-cnc-machining-mid-atlantic-aerospace) [CNC Tolerances & GD&T Guide](/resources/cnc-machining-tolerances-gdt-guide) [Reducing CNC Machining Costs](/resources/reducing-cnc-machining-costs) [6061 vs 7075 Aluminum](/materials/6061-vs-7075-aluminum) [Brass vs Bronze Machining](/materials/brass-vs-bronze-machining) [![Olympus Machining LLC logo — CNC machining shop Hanover, PA](/assets/olympus-logo-DbWcTX06.webp)](/) Olympus Machining LLC is a precision CNC machining shop in Hanover, Pennsylvania, providing CNC milling and turning services for OEMs and manufacturers nationwide. 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