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Description
Technical data for the ER25 Ø3 mm collet
| Technical Data | |
|---|---|
| Hole diameter d | 3-2 mm |
| Outside diameter D | 26 mm |
| Overall length L | 34 mm |
ER25 collet 3 mm – reliable clamping of small tools in a system with enhanced vibration resistance
The ER25 collet with a clamping range of 2-3 mm provides stable clamping of tools with small shank diameters in a system offering increased mechanical rigidity. Made from hardened 65Mn steel with a hardness of 44-48 HRC in accordance with DIN 6499, it guarantees a maximum radial runout of 0.015 mm. A clamping capacity of 1 mm allows precise tool fitting throughout the dimensional range.
Key advantages of the ER25 3 mm collet
- Maximum radial runout of 0.015 mm according to DIN 6499 – positioning accuracy crucial for precision milling and drilling of small parts
- Clamping range of 2-3 mm with a tolerance of 1 mm – flexibility in tool selection exceeding the capabilities of compact ER11 and ER16 systems
- Construction measuring 26×34 mm with increased mass – effective vibration reduction during machining with small-diameter tools
- 65Mn spring steel hardened to 44-48 HRC – durability that ensures consistent clamping parameters over many years of use
- Compliance with the international ISO 15488 standard – universal compatibility with holders from leading tooling system manufacturers
The collet is designed to secure micro end mills, precision drills, engraving cutters, and countersinks used for machining electronic, medical, and model-making parts. The 3 mm diameter is among the common tool shank sizes used in precision machining of small components. The ER25 system, measuring 26×34 mm, provides better vibration damping than the smaller ER11 and ER16 systems, resulting in higher machined surface quality. A proven solution for professional workshops performing demanding micromachining operations.
Frequently asked questions
Used to clamp micro end mills, precision drills, engraving cutters, miniature countersinks, and other tools with cylindrical shanks within the 2-3 mm range. A clamping capacity of 1 mm provides flexibility in mounting shanks with slightly different dimensions.
The ER25 system, measuring 26×34 mm, has substantially greater mass than ER11 (11.5×18 mm) or ER16 (17×28 mm). Its reinforced construction dampens vibration generated during micromachining more effectively, improving finish quality and extending the life of delicate tools.
The smallest ER11 has dimensions of 11.5×18 mm, the common ER16 is defined by dimensions of 17×28 mm, the versatile ER20 is identified by its 21×31 mm size, the intermediate ER25 is defined by dimensions of 26×34 mm, the heavy-duty ER32 is recognized by dimensions of 33×40 mm, and the large ER40 is distinguished by its 41×46 mm size. The system designation is marked on the collet body 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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