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TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45° - Coolant-Through CAT Retention Knobs
TECHNIKSCoolant-Through CAT Retention Knobs

TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°

The TECHNIKS Retention Knob (MPN 21003-45C) is a coolant-through CAT retention knob designed for CAT40 taper tooling. It features a 45° angle and a 0.59-inch diameter, manufactured to ISO standards. This component…

SKU 3G-OTH-270929

Also listed as: 2100345C · 21003 45C

Brand
TECHNIKS
Item
Retention Knob: Coolant Through, CAT40 Taper, 45°
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
21003-45C

Technical Documents

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

Product Description

The TECHNIKS Retention Knob (MPN 21003-45C) is a coolant-through CAT retention knob designed for CAT40 taper tooling. It features a 45° angle and a 0.59-inch diameter, manufactured to ISO standards. This component enables coolant delivery through the tool holder for improved machining operations.

Frequently Asked Questions

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

The TECHNIKS Retention Knob 21003-45C is used in CNC machining centers with CAT40 taper tooling to secure the tool holder in the spindle. Its coolant-through design allows cutting fluid to pass through the knob and tool holder, improving chip evacuation and cooling during high-speed machining operations.

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

The TECHNIKS Retention Knob 21003-45C has a CAT40 taper, a 45° angle, and a 0.59-inch diameter. It is manufactured to ISO standards and features a coolant-through design. The manufacturer part number is 21003-45C, and it is made by TECHNIKS.

Where to buy the TECHNIKS Retention Knob 21003-45C worldwide?

You can source the TECHNIKS Retention Knob 21003-45C through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install a coolant-through CAT40 retention knob?

To install a coolant-through CAT40 retention knob like the TECHNIKS 21003-45C, first clean the spindle and tool holder taper. Apply light oil to the knob threads, then torque it to the manufacturer's recommended specification using a retention knob tool. Ensure the coolant passages align properly for unrestricted flow.

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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