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TECHNIKS CAT40 Retention Knob - CAT Retention Knobs
TECHNIKSCAT Retention Knobs

TECHNIKS CAT40 Retention Knob

The TECHNIKS Retention Knob is a CAT40 taper, 45° angle, 0.59 in diameter CAT retention knob (MPN 21003-45). It is manufactured to MAS standards. This component is designed for use in CAT40 tooling systems.

SKU 3G-OTH-265331

Also listed as: 2100345 · 21003 45

Brand
TECHNIKS
Item
CAT40 Retention Knob
Part Number
21003-45
Category
CAT Retention Knobs
Available to Order
Also known as:21003-45TECHNIKS
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Technical Specifications

TECHNIKS
Manufacturer Part Number
21003-45

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

Product Description

The TECHNIKS Retention Knob is a CAT40 taper, 45° angle, 0.59 in diameter CAT retention knob (MPN 21003-45). It is manufactured to MAS standards. This component is designed for use in CAT40 tooling systems.

Frequently Asked Questions

What is the TECHNIKS Retention Knob 21003-45 used for?

The TECHNIKS Retention Knob 21003-45 is used to secure CAT40 tool holders in the spindle of CNC milling machines. It ensures proper clamping and release during automatic tool changes, maintaining tool rigidity and machining accuracy in industrial metalworking operations.

What are the specifications of the TECHNIKS Retention Knob 21003-45?

The TECHNIKS Retention Knob 21003-45 has a CAT40 taper, a 45° angle, and a 0.59 in diameter. It is manufactured to MAS standards and carries the manufacturer part number 21003-45. This component is designed for use in CAT40 tooling systems.

Where to buy TECHNIKS Retention Knob 21003-45 worldwide?

You can source the TECHNIKS Retention Knob 21003-45 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the component reaches your facility reliably.

How to select the correct retention knob for a CAT40 spindle?

To select the correct retention knob, match the taper size (CAT40), angle (45°), and diameter (0.59 in) to your spindle and tool holder specifications. Verify the knob meets MAS standards, as the TECHNIKS 21003-45 does, to ensure proper fit and safe operation.

Used in

Common applications for TECHNIKS
CNC machining centers — Techniks CAT40 to JT33 arbor (MPN 22515) for mounting drill chucks in drilling operations.
Metalworking and industrial machining — Techniks CAT50 to JT4 arbor (MPN 22529) for adapting CAT50 spindles to JT4 drill chucks.
Precision drilling on machining centers — Techniks CAT50 to JT5 arbor (MPN 22531) for secure mounting of JT5 drill chucks.
Manufacturing operations requiring rigid toolholding — Techniks CAT50 to JT33 arbor (MPN 22525) for connecting CAT50 spindles to JT33 chucks.
CNC drilling with CAT40 spindles — Techniks CAT40 to JT6 arbor (MPN 22513) for mounting JT6 drill chucks on CAT40 machines.
Toolholding for metalworking — Techniks CAT40 to JT2 arbor (MPN 22511) for adapting CAT40 spindles to JT2 drill chucks.
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TECHNIKS Products

3G Electric supplies TECHNIKS 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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