DC Series Pull-Back Spring Collet for CNC Tool Holders

DC Series Pull-Back Spring Collet for CNC Tool Holders

High-precision 1:10 taper pull-back spring collets with superior clamping force and runout accuracy ≤0.005mm, ideal for high-speed and high-precision milling and drilling operations.
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Description

DC series pull-back spring collets are manufactured from high-quality alloy spring steel with overall vacuum quenching and precision grinding, the premium tool holding accessories for pull-back type CNC tool holders.
  1. Pull-back clamping design provides significantly higher gripping force and better concentricity than standard ER collets, ensuring stable tool holding even under heavy cutting loads.
  2. Ultra-high precision manufacturing ensures ≤0.005mm runout accuracy at 2×D from the collet face, delivering exceptional machining precision and surface finish.
  3. Standard 1:10 taper design is fully compatible with all mainstream DC pull-back tool holders on the market.
  4. Complete size range from DC6 to DC16 covers all common tool diameters from 2mm to 16mm, with both metric and inch sizes available.
  5. Hardened and precision-ground surface provides superior wear resistance and corrosion resistance, extending service life significantly.
  6. Excellent dynamic balance performance makes it suitable for high-speed machining up to 40,000 RPM.

Complete Specification Table (Unit: mm)

Model No. Clamping Range d D L T Price
DC6 Series 9.6 36 M5×0.8P
DC6-2 2 2 9.6 36 M5×0.8P
DC6-3 3 3 9.6 36 M5×0.8P
DC6-3.175 3.175 3.175 9.6 36 M5×0.8P
DC6-4 4 4 9.6 36 M5×0.8P
DC6-5 5 5 9.6 36 M5×0.8P
DC6-6 6 6 9.6 36 M5×0.8P
DC8 Series 15 45 M5×0.8P
DC8-3 3 3 15 45 M5×0.8P
DC8-3.175 3.175 3.175 15 45 M5×0.8P
DC8-4 4 4 15 45 M5×0.8P
DC8-5 5 5 15 45 M5×0.8P
DC8-6 6 6 15 45 M5×0.8P
DC8-7 7 7 15 45 M5×0.8P
DC8-8 8 8 15 45 M5×0.8P
DC12 Series 22 66 M8×1.25P
DC12-3 3 3 22 66 M8×1.25P
DC12-3.175 3.175 3.175 22 66 M8×1.25P
DC12-4 4 4 22 66 M8×1.25P
DC12-5 5 5 22 66 M8×1.25P
DC12-6 6 6 22 66 M8×1.25P
DC12-7 7 7 22 66 M8×1.25P
DC12-8 8 8 22 66 M8×1.25P
DC12-10 10 10 22 66 M8×1.25P
DC12-11 11 11 22 66 M8×1.25P
DC12-12 12 12 22 66 M8×1.25P
DC16 Series 24 61 M8×1.25P
DC16-5 5 5 24 61 M8×1.25P
DC16-6 6 6 24 61 M8×1.25P
DC16-7 7 7 24 61 M8×1.25P
DC16-8 8 8 24 61 M8×1.25P
DC16-9 9 9 24 61 M8×1.25P
DC16-10 10 10 24 61 M8×1.25P
DC16-11 11 11 24 61 M8×1.25P
DC16-12 12 12 24 61 M8×1.25P
DC16-13 13 13 24 61 M8×1.25P
DC16-14 14 14 24 61 M8×1.25P
DC16-15 15 15 24 61 M8×1.25P
DC16-16 16 16 24 61 M8×1.25P

Parameter Explanation

  • Model No. : DCXX-Y, where XX indicates the collet body diameter (e.g., DC12), Y indicates the clamping diameter
  • Clamping Range : Exact tool shank diameter that the collet is designed to hold
  • d : Inner diameter of the collet clamping hole
  • D : Outer diameter of the collet body
  • L : Total length of the collet
  • T : Thread specification at the rear of the collet for pull-back mechanism
  • 1:10 Taper : Standard taper angle for universal compatibility with DC pull-back tool holders

Applications

CNC Machining

Ideal for CNC lathe, milling and machining center operations, ensuring high-precision dimensional control and reliable tool holding for mass production.

Quality Control Labs

Suitable for quality inspection departments and calibration labs, providing accurate measurement data to verify product compliance with ISO and industry standards.

Mold & Die Making

Perfect for mold and die workshops, where micron-level precision tools and gauges are essential for complex cavity machining and final inspection.

OEM/ODM Projects

Customizable solutions for OEM and ODM manufacturing partners, offering tailored measuring tools and CNC accessories to meet unique production requirements.

Automotive Manufacturing

Designed for automotive component production lines, ensuring consistent precision and durability in engine parts, transmission components and assembly processes.

Aerospace & Precision Engineering

Ideal for aerospace and defense manufacturing, where ultra-high precision instruments and reliable tool holders meet strict quality and safety requirements.

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