OpeningYour drawing defines the part. We machine it, verify it, and ship it with a full inspection report. This is a custom CNC collet chuck, built to your exact dimensions and run
OpeningYour drawing defines the part. We machine it, verify it, and ship it with a full inspection report. This is a custom CNC collet chuck, built to your exact dimensions and runout requirements. We
Get a Fast Quote for This Part
Send us your drawing / quantity / material — reply within 24h.
Your drawing defines the part. We machine it, verify it, and ship it with a full inspection report. This is a custom CNC collet chuck, built to your exact dimensions and runout requirements. We do not sell off-the-shelf blanks. Every unit is made from your print, then checked on a CMM before it leaves our floor.
Runout: ≤ 0.005 mm TIR at nose (ER16 collet seat)
Material: 20CrMnTi or 8620, case-hardened to HRC 58–62
Lead time: 7–12 working days for prototypes, 15–20 days for production runs
No MOQ: order 1 piece or 1,000 pieces
Made in China, Dongguan factory, 20 years in precision manufacturing
Specifications
We machine HSK40 ER16 collet chucks on 5-axis CNC turning-milling centers. The taper is ground after heat treatment, not just turned. This is what keeps the tool holder accurate at 30,000 RPM.
Parameter
Value
Material options
20CrMnTi, 8620, 42CrMo, 304/316 stainless
Hardness
Case-hardened HRC 58–62, depth 0.8–1.2 mm
Taper accuracy
AT3 per DIN 69893 (HSK40)
Collet seat runout
≤ 0.005 mm TIR
Concentricity (collet to taper)
≤ 0.008 mm
Surface finish
Ra 0.4 µm on taper, Ra 0.8 µm on body
Balancing
G2.5 at 25,000 RPM (optional G1.0)
Threads
ER16 collet nut thread, M16x0.75 or per drawing
Process
5-axis CNC turning, grinding, CMM inspection
Batch size
1 to 10,000+ pieces
Inspection
100% dimensional check, CMM report per batch
Lead time
7–12 days (prototype), 15–20 days (production)
We can also add through-coolant holes, pull studs, or custom flanges. Just send the drawing. We will quote exactly what you need.
Three Reasons Buyers Send Us Their Drawings
1. Batch-traceable quality. Every heat number, every material cert, every machining operation is logged. If you need to trace a batch back to the raw bar, we can do it in minutes. This matters for aerospace and medical tooling where a single bad holder stops a line.
2. Inspection report per batch. You get a CMM report with every order. Not a generic certificate. Actual measured values for taper angle, runout, hardness, and surface finish. You can file it with your QC department or send it to your customer. No surprises.
3. One factory for CNC + stamping + springs + heat sinks. We run four production lines under one roof. If your project needs a collet chuck, a stamped retention knob, a spring for the collet, and a heat sink for the spindle drive, you get one vendor, one shipping point, one invoice. Less paperwork, fewer delays, better pricing.
Where These Parts Are Used
This HSK40 ER16 collet chuck is a high-speed tool holder. It holds ER16 collets for drills, end mills, and reamers from 1 mm to 10 mm shank diameter. Typical applications:
Medical device manufacturing – small-diameter drills for bone screws, implants
Aerospace structural parts – high-feed milling of aluminum alloys, where runout directly affects tool life
The HSK40 hollow taper gives high clamping force and repeatability. Combined with ER16 collets, it is the standard for small-tool high-speed machining. We make these to replace OEM holders or for your own tooling catalog.
Q: What is the minimum order quantity?
A: No MOQ. We make one prototype for you to test, then scale to production. Tooling cost is included in the unit price for small batches. For 100+ pieces, we offer tiered pricing.
Q: How do you guarantee tolerance and quality?
A: We grind the HSK40 taper after heat treatment, not just turn it. Every piece is measured on a CMM. Runout is held to 0.005 mm TIR. We send you the inspection report with the shipment. If a part fails your incoming inspection, we replace it at no cost.
Q: What is your lead time for custom CNC collet chucks?
A: Prototype (1–5 pieces): 7–12 working days. Production (50+ pieces): 15–20 working days. Urgent orders can be expedited to 5 days with a 15% surcharge. We confirm the exact date when you place the order.
Q: Do you provide material certificates and heat treatment reports?
A: Yes. Every batch comes with a mill certificate for the raw material (EN 10204 3.1) and a heat treatment report showing hardness and case depth. Additional third-party testing (UT, MPI) is available on request.
Send Your Drawing
Get a firm quote within 12 hours. We will review your drawing, confirm material, tolerance, and lead time. No obligation, no hidden fees.
Email: sc@bquq.com
WhatsApp: +86 13713157787
Precision manufacturing, custom CNC collet chuck, made in China, no MOQ. Send us your print and we will handle the rest.
