CNC lathe chuck holding a bright steel component mid-cut

Capability

CNC Turning

Turned bodies, sleeves, emitters, bushings and threaded fittings in brass, aluminum and stainless steel, with knurling and threading in the same setup.

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Overview

Why This Service Exists

Anything round on your drawing — a sleeve, a shroud, a threaded collar, a bushing — is turned rather than milled, which keeps concentricity tight and cost down.

The Problem

Round parts machined on separate setups drift out of concentricity, so threads bind and sleeves no longer slide over the body they were drawn against.

What You Get

Diameters, threads and knurls that have to agree with each other are cut in the same setup, so mating parts assemble the first time.

Who It Is For

Built For These Projects

Saber builders needing emitters, shrouds and threaded pommels to index correctly
EDC brands producing turned bodies, spacers and tail caps
Designers ordering bushings, sleeves and shaft adaptors to drawing
Anyone replacing a turned part that is no longer available

Specifications

CNC Turning At A Glance

Figures below are the ones GRACTS publishes. Anything marked TBC is confirmed against your drawing before you order.

Typical geometry	Bores, shoulders, external and internal threads, knurls, grooves, chamfers
Standard tolerance	±0.05 mm
Tight tolerance	±0.01 mm on high-precision diameters
General tolerance standard	ISO 2768-m
Common materials	Brass C360, aluminum 6061 / 7075, stainless steel 303 / 304 / 316L
Thread forms	Metric and imperial to drawing — confirm pitch and class on the PDF
Minimum order quantity	1 piece
Standard lead time	7–10 business days
Maximum turned diameter and length	TBC — confirm with your drawing

Process

How The Work Runs

Drawing Review

Thread callouts, fits and surface notes are checked against the model before quoting.

Bar Selection

Stock diameter is chosen to leave enough material for the finish pass without wasting bar.

Turning

Diameters, grooves and threads are cut in the fewest setups the geometry allows.

Secondary Work

Cross holes, flats and engraving are added after turning where the drawing requires them.

Inspection

Mating diameters and thread fit are checked before finishing or shipping.

FAQ

CNC Turning Questions

Can you cut threads that match a part I already have?

Yes, if the thread is dimensioned on the drawing. Send the pitch, diameter and class, or send the mating part’s drawing so both sides are cut to the same callout.

What tolerance do you hold on turned diameters?

±0.05 mm as standard, and ±0.01 mm where the drawing calls for a high-precision diameter.

Do you turn brass?

Yes. Brass C360 is one of the materials GRACTS specialises in, alongside aluminum, stainless steel and carbon steel.

Is there a minimum quantity for turned parts?

No. Single prototype orders are accepted, and volume pricing applies from 100 pieces.

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