ER Collet Chucks

  • Taper-to-Taper Runout < 0.0002"
  • AD+B coolant thru the spindle & flange
  • CAT40: Balanced G2.5 @ 20,000 RPM
  • CAT50 Balanced G6.3 @ 15,000 RPM
  • Hardened to 56-60 HRC
  • Taper Shank ground to AT3 accuracy (or better)
  • Stop Screw included
  • CAT40 Draw Bar Threads: 5/8"-11
  • CAT50 Draw Bar Threads: 1"-8
  • Wrenches are sold separately

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