TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 90°
SKU 3G-OTH-270924
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Frequently Asked Questions
What is a TECHNIKS retention knob used for?
A TECHNIKS retention knob secures the tool holder in the spindle of a CNC machine. This coolant-through CAT40 model, part number 21003-90C, delivers coolant directly to the cutting edge for improved machining performance and tool life.
What are the specifications of the TECHNIKS 21003-90C retention knob?
The TECHNIKS 21003-90C is a coolant-through retention knob with a CAT40 taper, a 90° angle, and a 0.59 in diameter. It is designed for use in CNC machining centers requiring through-spindle coolant delivery.
Where to buy TECHNIKS retention knobs worldwide?
3G Electric supplies TECHNIKS retention knobs like the 21003-90C to customers worldwide. We handle full logistics and customs clearance, ensuring reliable delivery for your CNC tooling needs across 14 industrial departments.
How to install a TECHNIKS coolant-through retention knob?
Install the TECHNIKS retention knob by threading it into the tool holder drawbar per the manufacturer's torque specification. Ensure the coolant passage is clear and the taper is clean before tightening to prevent runout or coolant leakage.
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3G Electric supplies TECHNIKS coolant-through cat retention knobs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
