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Edge of Arlington offers free shipping in the United States when you choose flat rate shipping.

• All mating surfaces precision ground
• Manufactured to the highest standards for maximum safety and long life
• Hardened for maximum longevity

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 toolholder, and may create a safety hazard.

 

 
techniks-bt-retention-knob
Unit of Measure
1 

Item #

Description

Ø

'D'

d1

d2

d3

d4

'L'

l1

l2

'T'

Price

17817 N/A BT30 - 45° coolant N/A 45° N/A 16.5mm N/A 11mm N/A 7mm N/A 12.5mm N/A 4mm N/A 43mm N/A 23mm N/A 18mm N/A M12 $25.00
17818 N/A BT40 - 45° coolant N/A 45° N/A 23mm N/A 15mm N/A 10mm N/A 17mm N/A 4mm N/A 60mm N/A 35mm N/A 28mm N/A M16 $28.00
17820 N/A BT40 - 60° coolant N/A 60° N/A 23mm N/A 15mm N/A 10mm N/A 17mm N/A 4mm N/A 60mm N/A 35mm N/A 28mm N/A M16 $28.00
17822 N/A BT40 - 90° coolant N/A 90° N/A 23mm N/A 15mm N/A 10mm N/A 17mm N/A 4mm N/A 60mm N/A 35mm N/A 28mm N/A M16 $28.00
17824 N/A BT50 - 45° coolant N/A 45° N/A 38mm N/A 23mm N/A 17mm N/A 25mm N/A 5mm N/A 85mm N/A 45mm N/A 35mm N/A M24 $51.00
17826 N/A BT50 - 60° coolant N/A 60° N/A 38mm N/A 23mm N/A 17mm N/A 25mm N/A 5mm N/A 85mm N/A 45mm N/A 35mm N/A M24 $51.00
17828 N/A BT50 - 90° coolant N/A 90° N/A 38mm N/A 23mm N/A 17mm N/A 25mm N/A 5mm N/A 85mm N/A 45mm N/A 35mm N/A M24 $51.00
Unit of Measure
1