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Description
Technical data for ER40 Ø12 mm collets
| Technical data | |
|---|---|
| Hole diameter d | 12-11 mm |
| Outside diameter D | 41 mm |
| Overall length L | 46 mm |
ER40 12 mm collet – efficient tool clamping for industrial applications
The ER40 Ø12 mm collet is a robust component of the ER40 clamping system, designed for cutting tools with straight shanks. Made from 65Mn spring steel with a hardness of 44-48 HRC, it provides stable, accurate clamping of milling cutters, drills, taps, and countersinking tools with a shank diameter of 12 mm.
Key advantages of the ER40 Ø12 mm collet
- Excellent axial stability – minimal radial runout ensures high machining quality without vibration
- Premium 65Mn spring steel – maintains its elastic properties throughout the product life cycle
- Manufactured in accordance with DIN 6499 – ensures full compatibility with ER40 system holders and nuts
- Clamping range of 12-11 mm – a clamping tolerance of 1 mm provides flexibility in selecting tools with different diameters
- Range of industrial applications – suitable for CNC milling machines, machining centers, boring machines, and heavy-duty drilling machines
ER40 12 mm collet is a popular size selected because tools with a 12 mm shank are widely used in the machinery industry. Recommended for professional toolrooms, maintenance teams, and manufacturing facilities. Choose the ER40 collet for reliable clamping during intensive use.
Frequently asked questions
The ER40 system accommodates tools with diameters from 3 mm to 26 mm. Each collet has a clamping range of 1 mm, allowing flexible tooling selection.
Insert the collet into the nut at an angle, engage the groove with the eccentric retainer, and press until it snaps into place. After fitting the nut onto the holder, tighten it with a wrench to the correct torque.
Each type has distinctive external dimensions: ER11 measures 11.5×18 mm, ER16 measures 17×28 mm, ER20 measures 21×31 mm, ER25 measures 26×34 mm, ER32 measures 33×40 mm, and ER40 measures 41×46 mm. The size designation is marked on each collet in accordance with DIN 6499.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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