Precision CNC machining for medical and aerospace

We hold tenths

Complex parts in titanium, stainless and superalloys. Milled, turned and Swiss machined, then measured and documented before they ship.

Submit a part for review Request a machining quote
  • ISO 13485:2016
  • AS9100D
  • ITAR registered
  • FDA registered
    T01 Ø12 flat end mill S9,500 rpm F2,400 mm/min X0.000 Y0.000 Z0.000

    Live simulation at 600× speed

    Straight answers first

    The four things buyers ask us on every first call.

    Can you machine this geometry?

    Yes, if it fits in 25.6 × 19.7 in

    5-axis simultaneous for undercuts and compound angles. Swiss for parts from Ø0.02 in. Send the model and we tell you yes or no within 2 business days.

    See machine sizes

    What quantities suit you?

    1 to 25,000 per release

    Prototypes run on the same machines and programs as production, so nothing changes when you scale up.

    How ordering works

    Can you provide the inspection records?

    Every lot ships with them

    CMM report, material certs and certificate of conformance as standard. FAI to AS9102 on request. Records ready for ISO 13485 device history files.

    See a sample report

    Which finishing is done in house?

    Deburr, passivation, laser marking

    Anodize, plating and coatings go to approved partners. We manage them, check the parts on return and include their certs.

    See finishing

    Everything around the cut

    Ten services, in the order your part meets them.

    Before the cut

    Drawing marked up in design review

    • Design review

      We mark up your drawing before we quote: tolerances, features and cost drivers, in writing.

      Reply in 2 days

    • Prototyping

      1 to 25 parts in 5 to 10 days, cut on the same machines as production.

      5 to 10 days

    The cut

    Roughing a titanium bracket

    • CNC milling

      Prismatic parts, pockets, bosses and threads on 3 and 4-axis machines.

      ±0.0002 in best

    • Multi-axis machining

      Impellers, undercuts and compound angles in one setup.

      5-axis simultaneous

    • Turning

      Shafts, fittings and round parts up to Ø15 in, with live tooling.

      ±0.0001 in on Ø

    • Swiss machining

      Small, slender parts from bar Ø0.02 to 1.26 in, finished in one pass.

      Ø0.5 to 32 mm

    • Production machining

      Repeat releases with SPC on critical features and a locked process.

      Up to 25,000

    After the cut

    Color-anodized titanium bone screws

    • Finishing coordination

      Deburr, passivation and laser marking in house. Anodize, plating and coatings through partners we manage.

      One PO, all certs

    • Assembly

      Kitting, press fits and torque-checked subassemblies, packed clean.

      ISO 7 clean bench

    • Inspection

      CMM, vision and surface checks, with a report in every box.

      FAI to AS9102

    Parts we make

    Real geometry, real materials, real tolerances.

    Down to Ø0.5 mm

    On a Swiss lathe the bar slides through a guide bushing, so the tool always cuts right next to support. Long, thin parts stay straight.

    Part
    Ø4.0 mm cortical bone screw
    Material
    Ti-6Al-4V ELI bar
    Real cycle
    4 min 12 s
    Step
    Turn the head

    Tolerances by process

    What we hold every day, and what we hold when your drawing needs it.

    How small is a tenth?

    A human hair is about 0.0028 in wide. A ±0.0001 in tolerance band is 1/14 of that. Scroll and we zoom from a Ø16 mm bore to its edge.

    1× magnification

    Bore Ø16.000 mm

    Human hair 70 µm

    Tolerance band ±2.5 µm (±0.0001 in)

    Machines and limits
    ProcessMachinesMax part sizeQuantities
    5-axis millingDMG Mori DMU 65 monoBLOCK ×4
    Hermle C 42 U ×2    		Ø25.6 × 19.7 in1 to 2,000
    3 and 4-axis millingHaas VF-4SS ×5
    Okuma Genos M560-V ×3    		50 × 20 × 25 in1 to 25,000
    TurningOkuma LB3000 EX II ×3
    Mazak QTN 250MSY ×2    		Ø15 × 24 in10 to 25,000
    SwissCitizen L20 ×4
    Tsugami SS32 ×3    		Ø0.02 to 1.26 in bar100 to 250,000 a year
    Surface finishMeasured on Mitutoyo SJ-410Ra 32 µin typicalRa 8 µin best
    Saw-cut bar stock ends in titanium, stainless, aluminium, brass, PEEK and Inconel

    Hard materials, on purpose

    We stock bar and plate with mill certs traced to the heat number, so every part links back to its melt.

    Titanium
    Ti-6Al-4VTi-6Al-4V ELICP Ti Grade 2 and 4
    Stainless
    316L17-4 PH15-5 PH440C303
    Superalloys
    Inconel 718Inconel 625A286Waspaloy
    Aluminium
    7075-T73516061-T62024-T351
    Cobalt chrome
    CoCrMo ASTM F1537
    Plastics
    PEEK implant gradeUltem 2300PPSUDelrin
    Specialty
    KovarInvar 36Beryllium copper

    Medical devices

    Implants and instruments

    • Bone screws, plates, cages and instrument jaws
    • ISO 13485, FDA registered, cleanroom packaging
    • UDI laser marking and DHR-ready records
    Medical machining

    Aerospace and defense

    Flight hardware

    • Fittings, manifolds, brackets and impellers
    • AS9100D and ITAR registered
    • FAI to AS9102 and full material traceability
    Aerospace machining

    Measured, then documented

    This is the report for the bracket at the top of this page. Every lot ships with one like it.

    Tenth Precision

    CMM inspection report

    Sample

    Part
    TP-4471-A Rev C
    Serial
    SN 0187
    Material
    Ti-6Al-4V, AMS 4928
    Heat
    7J42211
    Machine
    Zeiss Contura
    Lab
    20.1 °C
    #CharacteristicNominalTolActualIn tolerance
    8 of 8 characteristics in toleranceInspected by J. Ortiz · 2026-09-18
    A CMM ruby stylus touching the bore of a machined titanium fitting

    Inspection equipment

    • Zeiss Contura CMM ×2Bores, positions, profiles
    • Zeiss O-InspectSmall medical parts, optical and touch
    • Keyence IM-8000Fast 2D checks in production
    • Mitutoyo SJ-410Surface finish, Ra and Rz
    • Thread, pin and bore gaugesCalibrated, traceable to NIST

    Lab held at 20 °C ±1. Gauges calibrated on a tracked schedule.

    Qualify us in one afternoon

    Supplier-quality engineers get the whole pack at once. No sales call needed.

    • PDFISO 13485:2016 certificate
    • PDFAS9100D certificate
    • PDFITAR registration and FDA listing
    • PDFQuality manual, rev 14
    • XLSXEquipment and envelope list
    • PDFSample FAI (AS9102) and CMM report
    • PDFSupplier survey, filled in

    From drawing to delivery

    1. 1

      Send the drawing

      STEP plus PDF, material, quantity and date.

    2. 2

      Design review

      Written feedback within 2 business days.

    3. 3

      Quote

      Price per quantity break and a firm lead time.

    4. 4

      First article

      FAI report signed off before production.

    5. 5

      Releases

      Same process, same records, every lot.

    Send us the hard part

    An engineer reads every request. You get a written review or a quote within 2 business days.

    • NDA signed on request before you upload
    • ITAR files stay on US servers, US persons only
    • Direct line +1 (763) 555-0148
    • Email quotes@tenthprecision.com

    Free design review. We send written feedback on tolerances, features and cost drivers.

      Quantity
      Finishing
      Documents you need
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