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TECHNIKS Retention Knob: CAT40 Taper, 60° - CAT Retention Knobs
TECHNIKSCAT Retention Knobs

TECHNIKS Retention Knob: CAT40 Taper, 60°

The TECHNIKS Retention Knob is a CAT40 taper, 60° angle, 0.59 in diameter CAT retention knob (MPN 21003-60). It is manufactured by TECHNIKS and meets MAS specifications.

SKU 3G-OTH-265334

Brand
TECHNIKS
Item
Retention Knob: CAT40 Taper, 60°
Category
CAT Retention Knobs
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Technical Specifications

TECHNIKS
Manufacturer Part Number
21003-60
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TECHNIKS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The TECHNIKS Retention Knob is a CAT40 taper, 60° angle, 0.59 in diameter CAT retention knob (MPN 21003-60). It is manufactured by TECHNIKS and meets MAS specifications.

Frequently Asked Questions

What is a TECHNIKS Retention Knob CAT40 used for?

A TECHNIKS Retention Knob CAT40 is used to secure CAT40 taper tool holders in the spindle of CNC milling machines. The 60° angle and 0.59 in diameter ensure proper pull-stud engagement for safe, repeatable tool changes in industrial machining operations.

What are the specifications of the TECHNIKS 21003-60 retention knob?

The TECHNIKS 21003-60 retention knob has a CAT40 taper, 60° angle, and 0.59 in diameter. It is manufactured by TECHNIKS and meets MAS specifications. This pull-stud design is compatible with standard CAT40 spindle interfaces used in CNC machining centers.

Where to buy TECHNIKS retention knobs worldwide?

TECHNIKS retention knobs are available to order through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact 3G Electric for pricing and lead time on the TECHNIKS 21003-60 CAT40 knob.

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

Select a CAT40 retention knob that matches your spindle's taper angle and pull-stud diameter. The TECHNIKS 21003-60 uses a 60° angle and 0.59 in diameter. Verify your machine tool builder's specifications—common standards include MAS or BT—to ensure proper fit and safe operation.

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 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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