CAT40 1-1/4" Milling Chuck Tool Holder

SKU 202-6803

CAT40 1-1/4" Milling Chuck Tool Holder

Availability Out of stock

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SKU 202-6803
Mfg SKU # 202-6803
Tool Holder Category Milling Chuck
Brand Tegara
shank size CAT40
projection length 3.74
max rpm balanced to G2.5 20000
TIR (inch) 0.0001
drawbar thread size 5/8x11UNC
Dual Contact Tool Holder No
collet series MC1.25
collet chuck style standard
collet nut diameter 2.68
Coolant Through Yes
Full Details


  • cat40 milling chuck

    Evenly Clamping

    Clamping force is evenly distributed along the entire tool shank to improve rigidity and surface finish

  • aventor digital caliper

    Coolant Thru

    The internal directional slot also functions as a tunnel for high pressure coolant aimed toward the periphery of the cutting tool

  • aventor digital caliper

    Thick Wall

    The thick wall around the collet nut provides immense gripping strength by collapsing the taper tightly against the mill chuck body

Product Spotlight

  • Runout accuracy is witin 5 micron (0.0002") at 3xD location using a 32mm testing round shank

  • All milling chucks undergo a sub-zero cryogenic treatment (-90 C) after heat treatment to remove residual Austenite. This creates a uniform Martensite state and eliminates distortion, preventing deformation during the life of the toolholder
  • Dynamically balanced to 20,000RPM at G2.5 by Haimer balancing machines at all locations for consistent balance
  • Manufactured from alloy steel with good core strength and long wear life. Taper shank is case hardened to 56-60 HRC
  • Taper ground to AT3 or better accuracy standard for maximum contact with spindle. All of SHARS CAT/BT/HSK tool holder use Stotz Air/Electronic Gaging for production and finish inspection. Stotz has been chosen by major aircraft companies as the best and most consistent gaging for tool holder shanks

  • All critical surfaces are precision ground

  • Nickel plated coating on the collet nut

What's Included

  • Collet NOT included