TECHNIKS Collet: ER40
The TECHNIKS Collet: ER40, 21 mm is a standard ER collet designed for precision toolholding. This product, with manufacturer part number 04240-21, is a 21 mm collet within the ER40 series from TECHNIKS.
SKU 3G-OTH-311259
Also listed as: 0424021 · 04240 21
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
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Product Description
The TECHNIKS Collet: ER40, 21 mm is a standard ER collet designed for precision toolholding. This product, with manufacturer part number 04240-21, is a 21 mm collet within the ER40 series from TECHNIKS.
Frequently Asked Questions
What is the TECHNIKS ER40 21 mm collet used for?
The TECHNIKS ER40 21 mm collet (MPN 04240-21) is used for precision toolholding in machining operations. It securely grips cutting tools with a 21 mm shank diameter, ensuring concentricity and reducing runout in milling, drilling, and turning applications across industrial manufacturing.
What are the specifications of the TECHNIKS 04240-21 collet?
The TECHNIKS 04240-21 collet is an ER40 series standard collet with a 21 mm clamping diameter. It is designed for high-precision toolholding in CNC and manual machines. The manufacturer part number is 04240-21, and the brand is TECHNIKS.
Where to buy TECHNIKS ER40 collets worldwide?
3G Electric supplies TECHNIKS ER40 collets, including the 21 mm (04240-21), to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision toolholding component.
How to select the correct ER40 collet size for a tool?
Select an ER40 collet that matches your cutting tool shank diameter exactly. For a 21 mm shank, use the TECHNIKS 04240-21 collet. Ensure the collet is clean and undamaged before installation. Tighten the collet nut to the manufacturer’s recommended torque to maintain grip accuracy and avoid tool slippage.
Used in
Common applications for TECHNIKSTECHNIKS Products
3G Electric supplies TECHNIKS standard er collets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
