TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 60°
The TECHNIKS Retention Knob (MPN 21005-60C) is a coolant-through CAT retention knob designed for CAT50 taper tooling with a 60° angle and 0.9-inch diameter. This ISO-standard component enables coolant delivery…
SKU 3G-OTH-270919
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Product Description
The TECHNIKS Retention Knob (MPN 21005-60C) is a coolant-through CAT retention knob designed for CAT50 taper tooling with a 60° angle and 0.9-inch diameter. This ISO-standard component enables coolant delivery through the spindle for improved machining performance.
Frequently Asked Questions
What is a TECHNIKS Retention Knob used for?
A TECHNIKS Retention Knob secures CAT50 taper tooling in the spindle and enables coolant-through delivery for improved machining performance. It is used in CNC milling and turning operations across industries like aerospace, automotive, and general manufacturing where precision and thermal management are critical.
What are the specifications of the TECHNIKS 21005-60C Retention Knob?
The TECHNIKS 21005-60C is a coolant-through retention knob for CAT50 taper tooling with a 60° angle and 0.9-inch diameter. It meets ISO standards (attr1036358: ISO) and is designed for reliable coolant flow through the spindle. Manufacturer part number: 21005-60C.
Where to buy TECHNIKS Retention Knobs worldwide?
3G Electric supplies TECHNIKS Retention Knobs worldwide, handling full logistics and customs clearance for global delivery. As a sourcing partner across 14 industrial departments, we provide genuine TECHNIKS components like the 21005-60C coolant-through knob for CAT50 tooling. Contact us for availability and lead time.
How to select the correct TECHNIKS Retention Knob for a CAT50 spindle?
To select the correct TECHNIKS Retention Knob, match the taper size (CAT50), angle (60°), and diameter (0.9 in) to your spindle specifications. Confirm coolant-through capability if required. Always verify the manufacturer part number (e.g., 21005-60C) and ISO compliance to ensure proper fit and performance.
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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.












