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Frequently Asked Questions
What is a TECHNIKS BT40 retention knob used for?
A TECHNIKS BT40 retention knob secures the tool holder into the spindle of a CNC machine. It is essential for maintaining tool grip during high-speed machining operations in metalworking, automotive, and aerospace manufacturing.
What are the specifications of the TECHNIKS BT40 retention knob?
The TECHNIKS retention knob has a BT40 taper, a 60° included angle, and a 15 mm diameter. The manufacturer part number is 17808. It is designed for use with BT40 tool holders in CNC spindles.
Where to buy TECHNIKS BT40 retention knobs worldwide?
TECHNIKS BT40 retention knobs are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations for procurement teams and plant engineers.
How to select the correct TECHNIKS retention knob for a CNC spindle?
To select the correct TECHNIKS retention knob, match the taper size (e.g., BT40), the pull-stud angle (commonly 60°), and the thread diameter to your spindle and tool holder specifications. Always verify the manufacturer part number, such as 17808, for compatibility.
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3G Electric supplies TECHNIKS bt retention knobs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













