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More Information
Mfg SKU #202-7386
Collet CategoryTap Collets
collet seriesER40
collet size0.367
TIR (inch)0.0006
tap size1/2
square size0.275



  • tegara ER SK ADS collet chuck tool holder

    SUJ2 alloy steel from Japan

    Made from SUJ2 alloy steel from Japan which is equivalent to AISI 52100 and hardened to HRC 46-48

  • tegara ER SK ADS tap collet chuck tool holder

    Mirror Finished

    The 2 taper surfaces are precision ground in a CNC grinder Shigiya from Japan to roughness tolerance of Ra 0.4

  • tegara ER SK ADS collet chuck tool holder

    Taper Accuracy

    An ER collet is selected during the CNC grinding process to check the 2 taper contact surface's accuracy


  • Robotic Automation in Manufacturing

    We optimize our manufacturing workflow for both efficiency and accuracy by utilizing robotic arms to load and unload ER collet stock into the Shigiya CNC grinders which are made in Japan. Combining the robotic arms with a reliable CNC grinder is our formular to control tight tolerance in a mass production environment.

  • Compatible with Standard Tap

    Square design slot in the rear end of the collet locks flat-sided shank, preventing the tap from spinning inside. Bore size and square size are laser marked on the collet body for easy identifying tap size.

  • Made in TAIWAN