We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 90° - Coolant-Through CAT Retention Knobs
TECHNIKSCoolant-Through CAT Retention Knobs

TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 90°

The TECHNIKS Retention Knob is a coolant-through CAT retention knob designed for CAT50 taper tooling, featuring a 90° angle and a 0.9-inch diameter. This ISO-compliant component, manufactured under part number…

SKU 3G-OTH-270927

Brand
TECHNIKS
Item
Retention Knob: Coolant Through, CAT50 Taper, 90°
Category
Coolant-Through CAT Retention Knobs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

TECHNIKS
Manufacturer Part Number
21005-90C
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 90° angle and a 0.9-inch diameter. This ISO-compliant component, manufactured under part number 21005-90C, facilitates 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 21005-90C used for?

The TECHNIKS Retention Knob 21005-90C is used to secure CAT50 taper tool holders in CNC machining spindles while enabling coolant-through delivery. Its 90° angle and 0.9-inch diameter support efficient chip evacuation and thermal control in milling, drilling, and turning operations across metalworking industries.

What are the specifications of the TECHNIKS Retention Knob 21005-90C?

The TECHNIKS Retention Knob 21005-90C is a coolant-through CAT retention knob for CAT50 taper tooling. It has a 90° angle, a 0.9-inch diameter, and is ISO compliant. The manufacturer part number is 21005-90C, and the brand is TECHNIKS. It facilitates coolant delivery through the tool holder for enhanced machining.

Where to buy the TECHNIKS Retention Knob 21005-90C worldwide?

You can source the TECHNIKS Retention Knob 21005-90C from 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; we provide this ISO-compliant coolant-through CAT50 retention knob for your machining operations.

How to select the correct TECHNIKS retention knob for CAT50 tooling?

To select the correct TECHNIKS retention knob for CAT50 tooling, verify the taper size (CAT50), coolant-through capability, and angle (e.g., 90°). The 21005-90C model has a 0.9-inch diameter and is ISO compliant. Ensure compatibility with your spindle and tool holder. Consult your machine manual or contact 3G Electric for sourcing assistance.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 45°, 0.9 in Dia (MPN 21005-45C). Key specifications — attr1033406: TECHNIKS; attr1036358: ISO.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 45°, 0.9 in Dia (MPN 21005-45C). Key specifications — attr1033406: TECHNIKS; attr1036358: ISO.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.59 in Dia (MPN 21003-45C). Key specifications — attr1033406: TECHNIKS; attr1036358: ISO.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.59 in Dia (MPN 21003-45C). Key specifications — attr1033406: TECHNIKS; attr1036358: ISO.
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 15°, 1.1 in Dia (MPN 21008-15C). Key specifications — attr1033406: TECHNIKS.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 15°, 1.1 in Dia (MPN 21008-15C). Key specifications — attr1033406: TECHNIKS.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.59 in Dia (MPN 21003-45CSF). Key specifications — attr1033406: TECHNIKS; attr1036358: MAS.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.59 in Dia (MPN 21003-45CSF). Key specifications — attr1033406: TECHNIKS; attr1036358: MAS.

More from TECHNIKS

View all TECHNIKS parts →
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 60°, 0.9 in Dia (MPN 21005-60C). Key specifications — attr1033406: TECHNIKS; attr1036358: ISO.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 60°, 0.9 in Dia (MPN 21005-60C). Key specifications — attr1033406: TECHNIKS; attr1036358: ISO.
TECHNIKS
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 15°, 0.75 in Dia (MPN 21006-15C). Key specifications — attr1033406: TECHNIKS; attr1036358: DIN.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 90°, 0.59 in Dia (MPN 21003-90CSF). Key specifications — attr1033406: TECHNIKS; attr1036358: MAS.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 90°, 0.59 in Dia (MPN 21003-90CSF). Key specifications — attr1033406: TECHNIKS; attr1036358: MAS.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.74 in Dia (MPN 21003-C). Key specifications — attr1033406: TECHNIKS; attr1036358: ANSI.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.74 in Dia (MPN 21003-C). Key specifications — attr1033406: TECHNIKS; attr1036358: ANSI.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 90°, 0.59 in Dia (MPN 21003-90C). Key specifications — attr1033406: TECHNIKS.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 90°, 0.59 in Dia (MPN 21003-90C). Key specifications — attr1033406: TECHNIKS.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.74 in Dia (MPN 17836). Key specifications — attr1033406: TECHNIKS; attr1036358: ANSI.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 45°, 0.74 in Dia (MPN 17836). Key specifications — attr1033406: TECHNIKS; attr1036358: ANSI.
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 45°, 1.14 in Dia (MPN 21005-C). Key specifications — attr1033406: TECHNIKS; attr1036358: ANSI.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT50 Taper, 45°, 1.14 in Dia (MPN 21005-C). Key specifications — attr1033406: TECHNIKS; attr1036358: ANSI.
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 60°, 0.59 in Dia (MPN 21003-60CSF). Key specifications — attr1033406: TECHNIKS; attr1036358: MAS.
TECHNIKS
TECHNIKS Retention Knob: Coolant Through, CAT40 Taper, 60°, 0.59 in Dia (MPN 21003-60CSF). Key specifications — attr1033406: TECHNIKS; attr1036358: MAS.