W SERIES COLLET

W SERIES COLLET
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W SERIES COLLET

A W-Series Collet is a high-precision, draw-in type workholding collet commonly used on cylindrical grinders, tool and cutter grinding machines, milling fixtures, and inspection setups. It offers excellent concentricity, high rigidity, and repeatable accuracy, making it ideal for precision grinding and finishing operations.

A W-Series Collet is a high-precision, draw-in type work-holding collet widely used on cylindrical grinding machines, tool & cutter grinders, milling fixtures, and inspection setups.
It provides excellent concentricity, rigidity, and repeatability, making it ideal for grinding and finishing operations.


🔹 KEY FEATURES

  • Very high concentricity (low TIR)
  • Strong, rigid draw-in clamping
  • Ideal for grinding & finishing
  • Long life with hardened & ground finish
  • Interchangeable with standard W-series chucks

📐 W-SERIES COLLET – STANDARD DIMENSION TABLE

W Size

Length (L) mm

Max Holding Capacity (mm)

Typical Use

W12

32

12

Small precision parts

W16

40

16

Tool room jobs

W20

50

20

Cylindrical grinding

W25

58

25

Medium grinding work

W32

70

32

Heavy grinding

W40

85

40

Large diameter jobs

📌 Each W collet generally holds one exact size (tight tolerance), not a wide range like ER.


🧩 CONSTRUCTION DETAILS

 

  • Material: Spring Steel / Alloy Steel
  • Heat Treatment: Hardened & tempered
  • Hardness: 58 HRC
  • Finish: Precision ground ID & OD
  • Slots: Uniform precision slits for even clamping

⚙️ TYPES OF W-SERIES COLLETS

  • Standard round W collet
  • Step W collet
  • Emergency (soft machinable) W collet
  • Special profile W collet (as per job)

🏭 APPLICATIONS

  • Cylindrical grinding machines
  • Tool & cutter grinders
  • Milling & inspection fixtures
  • Precision shafts, pins & tools
  • Tool rooms & production grinding

📦 SUPPLY OPTIONS

  • Sizes: W12 to W40 (standard)
  • Metric & inch bores
  • Hardened or soft (machinable)
  • Custom bore & tolerance as per drawing
  • Export-quality

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NBC COLLET
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NBC COLLET

The NBC Collet is a high-precision tool holding component designed for CNC, milling, and turning applications.
Provides superior clamping strength for consistent and accurate machining operations.
Made from high-grade hardened steel for exceptional durability and long service life.
Ensures minimal runout, improving cutting accuracy and surface finish quality.
Reduces vibration during machining, enhancing tool life and operational stability.
Compatible with NBC collet chucks and various tool holding systems.
Easy to install, remove, and maintain in workshop and industrial environments.
Perfect for machinists seeking precision, rigidity, and reliable performance.

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