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ER8 Collet

  • $ 31.50
  • Save $ 3.50

Discover the unmatched precision of Centaur's ER8 Collet, a cornerstone for micro-machining. Designed for CNC machining centers, micro-lathes, and milling machines, this collet is part of the versatile and accurate ER (Elastic Reamed) collet system, ideal for handling miniature cutting tools and micro-components.

Key Features of an ER8 Collet for Micro-Machining

  • Meets DIN 6499 / ISO 15488 standards, ensuring top-notch concentricity and interchangeability.
  • Crafted from hardened, precision-ground high-grade spring steel for maximum durability and precision.
  • Features a double-slitted design with a 1:16 taper for robust gripping force and uniform clamping pressure.
  • Clamps round shank micro-tools ranging from 0.008" to 0.25" (0.2mm to 6.35mm) in diameter.
  • Available in sealed versions for coolant-through applications, promoting efficient chip evacuation.

Advantages for Precision Micro-Machining

  • Facilitates high-speed micro-machining with minimal runout and vibration, achieving superior surface finishes.
  • Enables quick tool changeovers and easy setups, boosting productivity and minimizing downtime.
  • Appropriate for micro-machining a diverse array of materials, including metals, plastics, and composites.
  • Compatible with ER collet chucks and tool holding systems from leading manufacturers, ensuring versatility and reliability.

Choose Centaur's premium ER8 collet for your most demanding micro-machining tasks. Known for its exceptional precision, repeatability, and longevity, it's the perfect investment for operations prioritizing ultra-high accuracy, efficiency, and cost-effectiveness.

Collapse per collet: 0.5 mm. (0.019 in.)
Capacity per set: 0.5 – 5 mm. (0.019 – 0.197 in.)
Precision per DIN 649
Maximum tightening torque 7 ft/lbs


A= 8.5 mm. (0.34 in.)
B =13.5 mm. (0.53 in.)


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