CNC Thread Grinding

CNC Thread Grinding at VT machining covers a broad range of metals and grades, each processed to your drawing with parameters tuned to the alloy.

Thread grinding produces precise, high-finish threads on hardened parts and lead screws. We quote from your files, give honest DFM feedback up front, and back each batch with dimensional inspection.

Typical tolerance±0.002 mm
Surface finishRa 0.1–0.4 µm
Quantities1 prototype → 100k+
Quote turnaroundUsually < 1 business day
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CNC Thread Grinding at VT machining — CNC precision machining services
CNC Thread Grinding — in-house at VT machining

CNC Thread Grinding Capability at a Glance

  • Pitch accuracy to grade 3
  • Hardened-part threading
  • Lead screws & gauges
  • Fine surface finish
100% Free tool · No sign-up · Instant 3D

Design your CNC Thread Grinding part online — free 3D + 2D drawing builder

No CAD licence, no sign-up, no cost. Set your metal, dimensions and features in the browser, see the part update live in 3D, switch to 2D to add dimensions and tolerances, then send the drawing straight to our cnc thread grinding team for a quotation.

  • Live 3D preview — rotate, zoom and explode the model as you type
  • Built-in 2D drawing sheet with dimensions, tolerances and notes
  • Download the preview or send it with your RFQ in one click
  • Free to use, unlimited revisions, nothing to install
VT CNC Machining 3D
CNC Grinding Builder Configure precision ground metal plates and discs with surface finish Ra, flatness, parallelism and chamfer requirements. Every builder includes the Freeform Corner & Region Editor: cut or add material of any shape directly on the 3D model, then submit an RFQ. This tool is for visual configuration only. Final dimensions, tolerances, materials, coatings, and manufacturability will be reviewed from your drawing or specification.
3D PART PREVIEW Visual Specification

CNC Grinding Builder

Interactive visual preview for custom CNC machining configuration.

SP SPEC SUMMARY:
Import Code (One-Click Recall)

Save this code before you leave — it is the only way to recall this exact model. If you lose it, your configuration cannot be restored.

SUBMIT RFQ — ENGINEERING REVIEW Your current 3D configuration and specification summary are attached automatically. Attach a drawing if you have one.
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FREQUENTLY ASKED QUESTIONS
Which grinding processes are available?

Surface, cylindrical, centerless and thread grinding plus honing. The builder captures surface finish Ra, flatness and parallelism so the right process is selected at engineering review.

What finish and flatness can grinding achieve?

Surface finishes from Ra 0.8 down to mirror (below Ra 0.05), with flatness and parallelism to 0.002 mm on stable parts — single-digit micron capability on ground faces.

Prefer the full-screen version, or need a different process? Open the full Free 3D + 2D Builder

What Is CNC Thread Grinding?

CNC Thread Grinding is an abrasive finishing process. A bonded wheel removes a very fine layer of material, which is how single-micron size control, tight flatness or roundness, and mirror-class surface finishes are achieved — including on hardened parts that cannot be cut with conventional tooling.

At VT machining the process runs under full CNC control on calibrated equipment. In practice, that means this: Thread grinding produces precise, high-finish threads on hardened parts and lead screws. If you do not have a CAD file yet, the free 3D + 2D builder on this page will produce a drawing we can quote from.

How CNC Thread Grinding Works at VT machining

An abrasive wheel removes a fine, controlled layer from the metal part. Wheel specification, dressing interval, infeed and coolant are matched to the alloy's hardness so the surface is not burned or left with residual stress.

Programming is driven directly by your 3D model or print. Work-holding, tool selection and the cutting strategy are planned around the critical features and the material before the first chip is cut. First-off inspection confirms the process is centred before production continues.

  1. 1

    Send your drawing

    CAD model, PDF print — or a drawing you build free on this page. We reply with feasibility, price and lead time.

  2. 2

    Wheel selection & dressing

    Wheel spec, dress interval, infeed and coolant are matched to the alloy hardness.

  3. 3

    CNC Thread Grinding run

    First article is verified against the print before the balance of the batch is released.

  4. 4

    Inspection & dispatch

    In-process checks plus final inspection, with CMM reports, mill certs and FAIR on request.

CNC Thread Grinding Tolerances & Surface Finish

Ground metal reaches single-micron tolerances on size, flatness and parallelism, with surface finishes down to Ra 0.1–0.4 µm — and a near-mirror finish on suitable alloys.

Exact achievable figures depend on the alloy, the feature size and the part geometry. Tell us which dimensions are critical and we will advise feasibility up front.

CNC Thread Grinding — capability summary
Table / work sizeUp to 600 × 300 mm surface, Ø300 mm cylindrical
Size tolerance±0.002 mm
Flatness / parallelismWithin 0.003–0.005 mm
Surface finishRa 0.1–0.4 µm
HardnessUp to 65 HRC
Lead timePrototypes 5–10 days · production 10–20 days
DocumentationDimensional report, material certificate, FAIR on request

Figures are typical in-house capability. Send your drawing and we will confirm what is achievable for your specific part.

CNC Thread Grinding by Metal — Choose Your Material

Select the alloy you are working in to see material-specific capability, design guidance and applications.

CNC Thread Grinding AluminumCNC Thread Grinding Stainless SteelCNC Thread Grinding SteelCNC Thread Grinding Alloy SteelCNC Thread Grinding Spring SteelCNC Thread Grinding TitaniumCNC Thread Grinding CopperCNC Thread Grinding BrassCNC Thread Grinding BronzeCNC Thread Grinding Beryllium CopperCNC Thread Grinding Phosphor BronzeCNC Thread Grinding NickelCNC Thread Grinding Nickel SilverCNC Thread Grinding MolybdenumCNC Thread Grinding TungstenCNC Thread Grinding Tungsten CopperCNC Thread Grinding InvarCNC Thread Grinding KovarCNC Thread Grinding InconelCNC Thread Grinding MonelCNC Thread Grinding Hard Alloys

Design Tips for CNC Thread Grinding

A few design choices make a real difference to cost and quality. Allowing adequate grind stock, specifying realistic flatness over the true datum, and relieving corners help us hit tight tolerances on metal efficiently. If you send your model early, we will return practical DFM feedback before you commit to production.

Secondary Operations & Finishing

We complete metal components with the secondary steps your drawing calls for. We arrange heat treatment, surface treatment, marking and assembly as needed. Tell us the final spec and we will plan the full route so parts arrive ready to use.

CNC Thread Grinding Quality & Inspection

Consistent quality comes from disciplined process control. Critical dimensions on metal parts are checked in-process and verified at final inspection using calibrated instruments and, where required, CMM measurement. Full documentation — dimensional reports, mill certs, FAIR — is available when your programme needs it.

Industries That Order CNC Thread Grinding

CNC Thread Grinding parts made by VT machining go into the sectors below. Each page lists the typical components, preferred alloys and the tolerance expectations for that industry.

Semiconductor Equipment — CNC Thread Grinding components by VT machiningSemiconductorSemiconductor EquipmentVacuum-chamber components, wafer-handling parts, precision electrodesAerospace Components — CNC Thread Grinding components by VT machiningAerospace & DefenseAerospace ComponentsTurbine and engine brackets, structural fittings, sensor housingsIndustrial Machinery — CNC Thread Grinding components by VT machiningIndustrial & AutomationIndustrial MachineryGears and shafts, precision bushings, jigs and fixturesOptics & Instrumentation — CNC Thread Grinding components by VT machiningOptics & MetrologyOptics & InstrumentationOptical mounts, low-expansion frames, precision apertures

CNC Thread Grinding in the Shop

Laser cutting aluminium sheet — CNC Thread Grinding at VT machining
Laser cutting aluminium sheet — CNC Thread Grinding at VT machining
Laser cutting stainless steel — CNC Thread Grinding at VT machining
Laser cutting stainless steel — CNC Thread Grinding at VT machining
5-axis machining centre in cut — CNC Thread Grinding at VT machining
5-axis machining centre in cut — CNC Thread Grinding at VT machining

Related Grinding Processes

CNC Surface GrindingCNC Cylindrical GrindingCNC Centerless GrindingCNC Grinding

Other CNC Services

CNC HoningCNC Gear CuttingCNC Gear HobbingCNC Waterjet CuttingCNC BroachingCNC Laser Cutting

How to Order CNC Thread Grinding

Getting a quote is simple. Share your model, the material grade, your quantity and target tolerances. You receive a clear quotation with lead time and honest manufacturability feedback.

Have a drawing ready? Send it with your quantity and material for a quotation, usually within one business day.

Request a Quote

Frequently Asked Questions

Which industries use CNC Thread Grinding parts?

CNC Thread Grinding parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise components are required.

What material thickness or size range suits CNC Thread Grinding?

We machine the material across a broad size range; share your part envelope for confirmation.

What is the typical lead time and minimum order for CNC Thread Grinding?

CNC Thread Grinding prototypes for can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.

Does CNC Thread Grinding require dedicated tooling?

Most CNC Thread Grinding work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.

What surface finish is achievable on with CNC Thread Grinding?

Grinding can take the part to a fine finish — typically Ra 0.1–0.4 µm, and to a mirror grade on suitable alloys.

What is CNC Thread Grinding and how is it done?

CNC Thread Grinding refers to thread grinding produces precise, high-finish threads on hardened parts and lead screws. VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.