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TECHNIKS Coolant-Through CAT Retention Knob, CAT50, 45°, 1.14 in Dia, 21005-C - Coolant-Through CAT Retention Knobs
TECHNIKSCoolant-Through CAT Retention Knobs

TECHNIKS Coolant-Through CAT Retention Knob, CAT50, 45°, 1.14 in Dia, 21005-C

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

Also listed as: 21005C · 21005 C

Brand
TECHNIKS
Item
Coolant-Through CAT Retention Knob, CAT50, 45°, 1.14 in Dia, 21005-C
Category
Coolant-Through CAT Retention Knobs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

TECHNIKS
Manufacturer Part Number
21005-C

Technical Documents

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TECHNIKS Products
3G Electric (S) Pte. Ltd. — Singapore

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.

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.

Used in

Common applications for TECHNIKS
CNC milling — TECHNIKS BT40 end mill holders with coolant-through-spindle for high-speed machining of steel and aluminum.
High-pressure coolant machining — TECHNIKS sealed ER20 coolant collets for deep-hole drilling and chip evacuation in aerospace components.
Precision tool holding — TECHNIKS standard ER32 collets for holding drills and reamers in automated lathe operations.
Heavy-duty milling — TECHNIKS TG150 collets for clamping large-diameter tools in roughing operations on cast iron.
Coolant-through-spindle applications — TECHNIKS plug-style ER40 coolant collets for delivering coolant to the cutting edge in multi-axis machining centers.

TECHNIKS Products

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This coolant-through CAT retention knob is designed for CAT50 taper tooling, featuring a 45° angle and 0.9-inch diameter. It enables coolant delivery through the tool holder to support chip evacuation and cooling during machining operations. The component meets ISO standards and is identified by manufacturer part number 21005-45C
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This coolant-through CAT retention knob is designed for CAT50 taper tooling, featuring a 45° angle and 0.9-inch diameter. It enables coolant delivery through the tool holder to support chip evacuation and cooling during machining operations. The component meets ISO standards and is identified by manufacturer part number 21005-45C
This coolant-through CAT retention knob is designed for CAT40 taper tooling, featuring a 45° angle and 0.59-inch diameter. It enables cutting fluid delivery through the tool holder to aid chip evacuation and cooling during machining operations. Manufactured to ISO standards
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This coolant-through CAT retention knob is designed for CAT40 taper tooling, featuring a 45° angle and 0.59-inch diameter. It enables cutting fluid delivery through the tool holder to aid chip evacuation and cooling during machining operations. Manufactured to ISO standards
This coolant-through retention knob is designed for CAT50 taper tool holders used in CNC machining centers. It secures the tool holder in the spindle while allowing coolant flow for chip evacuation and thermal control. The knob features a 15° angle and a 1.1-inch diameter
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This coolant-through retention knob is designed for CAT50 taper tool holders used in CNC machining centers. It secures the tool holder in the spindle while allowing coolant flow for chip evacuation and thermal control. The knob features a 15° angle and a 1.1-inch diameter
This coolant-through CAT retention knob is designed for CAT40 taper tool holders, featuring a 45° angle and 0.59-inch diameter. It enables coolant delivery through the tool holder to improve chip evacuation and cooling during machining operations. Manufactured to MAS standards
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This coolant-through CAT retention knob is designed for CAT40 taper tool holders, featuring a 45° angle and 0.59-inch diameter. It enables coolant delivery through the tool holder to improve chip evacuation and cooling during machining operations. Manufactured to MAS standards

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This coolant-through retention knob secures CAT50 taper tooling in the spindle while enabling coolant delivery for improved thermal management. Designed with a 60° angle and 0.9-inch diameter, it meets ISO standards for use in CNC milling and turning operations
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This coolant-through retention knob features a CAT40 taper, 15° angle, and 0.75-inch diameter. Manufactured to DIN standards, it is used in CNC machining centers to secure tool holders while enabling through-spindle coolant delivery for milling and drilling operations
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This coolant-through CAT retention knob is designed for CAT40 taper tooling, enabling coolant delivery through the toolholder to the cutting edge. It features a 90° coolant angle and a 0.59-inch diameter, complying with MAS standards. Used in machining centers to secure toolholders while improving chip evacuation and tool life
This coolant-through CAT retention knob is designed for CAT40 taper tool holders, featuring a 45° angle and 0.74-inch diameter. It conforms to ANSI standards and enables coolant delivery through the tool holder for improved chip evacuation and heat dissipation during machining operations
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This coolant-through retention knob secures CAT40 tool holders in CNC machine spindles. It delivers coolant directly to the cutting edge, enhancing machining performance and tool life. The 90° angle and 0.59 in diameter are designed for through-spindle coolant applications
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This coolant-through retention knob is designed for CAT40 taper tooling, featuring a 45° angle and 0.74-inch diameter. It conforms to ANSI standards and enables coolant delivery through the tool holder for improved chip evacuation and thermal control in machining operations
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This coolant-through CAT retention knob is designed for CAT40 taper toolholders, enabling coolant delivery through the toolholder to improve chip evacuation and reduce heat during machining. It features a 60° angle and a 0.59-inch diameter, meeting MAS standards for use in CNC milling and drilling operations
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