TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 45°
The TECHNIKS Retention Knob is a coolant-through CAT retention knob designed for CAT50 taper tooling, featuring a 45° angle and a 1.14-inch diameter. This ANSI-standard component, manufacturer part number 21005-C…
SKU 3G-OTH-270928
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Product Description
The TECHNIKS Retention Knob is a coolant-through CAT retention knob designed for CAT50 taper tooling, featuring a 45° angle and a 1.14-inch diameter. This ANSI-standard component, manufacturer part number 21005-C, enables coolant delivery through the tool holder for enhanced machining operations.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the TECHNIKS Retention Knob 21005-C used for?
The TECHNIKS Retention Knob 21005-C is used to secure CAT50 taper tool holders in CNC machining spindles while enabling coolant flow through the tool for improved chip evacuation and thermal control. It is common in milling and drilling operations requiring through-spindle coolant delivery.
What are the specifications of the TECHNIKS Retention Knob 21005-C?
The TECHNIKS Retention Knob 21005-C has a CAT50 taper, a 45° angle, and a 1.14-inch diameter. It is designed for coolant-through applications and meets ANSI standards. The manufacturer part number is 21005-C, and it is made by TECHNIKS.
Where to buy the TECHNIKS Retention Knob 21005-C worldwide?
You can source the TECHNIKS Retention Knob 21005-C worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct retention knob for CAT50 tooling?
To select the correct retention knob for CAT50 tooling, verify the taper size (CAT50), angle (commonly 45°), and diameter (e.g., 1.14 inches). Ensure it supports coolant-through if needed and matches ANSI standards. The TECHNIKS 21005-C is a reliable option for these requirements.
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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.












