CAT 40, CAT 50 Retention Knobs           

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Please make sure that the Retention Knob you order is the correct one for your machine. Using the wrong Retention Knob can cause damage to your machine spindle, the tool holder, and may cause a safety hazard.

 

Dimensions in millimeters   

Techniks Retention Knobs

  • All mating surfaces precision ground

  • Manufactured to the highest standards
    for maximum safety and long life

  • Look up Retention Knobs Sockets by CNC machine manufacturer

  • Retention Knobs Sockets

CAT Retention Knobs

Part No. Type Angle d1 d2 d3 L l1 l2 T Buy Now
21006-15 CAT 40-DIN Retention Knob 15 .75" 0.55" 0.640" 1.88" 1.024" .787" 5/8 - 11"   Add to cart  
21007-15 CAT 40-DIN Retention Knob 15 .75" 0.55" - 1.89" 1.028" .792" 5/8 - 11" Add to cart  
21003 CAT 40-ANSI Retention Knob 45 0.740" 0.490" 0.490" 1.50" 0.640" .440" 5/8 - 11" Add to cart  
21003-45 CAT 40-MAS-I Retention Knob 45 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-60 CAT 40-MAS-II Retention Knob 60 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-90 CAT 40-MAS-III Retention Knob 90 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21005-45 CAT 50-MAS-I Retention Knob Retention Knob 45 0.906" 0.669" 0.827" 3.346" 1.772" 1.378" 1 - 8" Add to cart  
21005-60 CAT 50-MAS-II Retention Knob 60 0.906" 0.669" 0.827" 3.346" 1.772" 1.378" 1 - 8" Add to cart  
21005-90 CAT 50-MAS-III Retention Knob 90 0.906" 0.669" 0.827" 3.346" 1.772" 1.378" 1 - 8" Add to cart  
21008-15 CAT 50-DIN Retention Knob 15 1.101" 0.825" - 2.640" 1.338" .984 " 1 - 8" Add to cart  
21005 CAT 50-ANSI Retention Knob 45 1.140" 0.820" 0.820" 2.30" 1.00" .700" 1 - 8" Add to cart  

 For pricing, click item "Add to Cart" icon or call 888-849-8034.

CAT Coolant Thru Retention Knobs

Part No. Type Angle d1 d2 d3 L l1 l2 T Buy Now
21006-15C CAT 40-DIN Coolant Retention Knob 15 .75" 0.55" 0.640" 1.88" 1.024" .787" 5/8 - 11" Add to cart  
21007-15C CAT 40-DIN Coolant Retention Knob 15 .75" 0.55" - 1.89" 1.028" .792" 5/8 - 11" Add to cart  
21003-C CAT 40-ANSI-Coolant  Retention Knob 45 0.740" 0.490" 0.490" 1.50" 0.640" .440" 5/8 - 11" Add to cart  
21003-45C CAT 40-Coolant-I Retention Knob 45 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-60C CAT 40-Coolant-II Retention Knob 60 0.590" 0.394v 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-90C CAT 40-Coolant-III Retention Knob 90 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-45CSF CAT 40-Coolant-I Slim Fit Retention Knob 45 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-60CSF CAT 40-Coolant-II Slim Fit Retention Knob 60 0.590" 0.394v 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21003-90CSF CAT 40-Coolant-III Slim Fit Retention Knob 90 0.590" 0.394" 0.512" 2.25" 1.266" .990" 5/8 - 11" Add to cart  
21005-45C CAT 50-Coolant-I 45 0.906" 0.669" 0.827" 3.346" 1.772" 1.378" 1 - 8" Add to cart  
21005-60C CAT 50-Coolant-II Retention Knob 60 0.906" 0.669" 0.827" 3.346" 1.772" 1.378" 1 - 8" Add to cart  
21005-90C CAT 50-Coolant-III Retention Knob 90 0.906" 0.669" 0.827" 3.346" 1.772" 1.378" 1 - 8" Add to cart  
21008-15C CAT 50-DIN Coolant Retention Knob 15 1.101" 0.825" - 2.640" 1.338" .984" 1 - 8" Add to cart  
21005-C CAT 50-ANSI-C Retention Knob 45 1.140" 0.820" 0.820" 2.30" 1.00" .700" 1 - 8" Add to cart  

NOTE: 5 piece minimum order.

 For pricing, click item "Add to Cart" icon or call 888-849-8034.

Click for BT Retention Knobs        Click for DIN Retention Knobs 


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