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Description
Technical data for the ER11 Ø7 mm collet
| Technical Data | |
|---|---|
| Bore Diameter d | 7-6 mm |
| Outside Diameter D | 11.5 mm |
| Overall Length L | 18 mm |
ER11 7 mm collet – extended clamping range for larger tools
The ER11 7 mm collet extends beyond the standard range of the ER11 system, allowing tools with diameters of 6-7 mm to be clamped in compact CNC machines and milling machines. Made from 65Mn spring steel hardened to 44-48 HRC in accordance with DIN 6499B, it provides reliable clamping even when machining materials that place greater demands on tool construction.
What sets the ER11 7 mm collet apart
- Maximum radial runout of 0.015 mm in accordance with DIN 6499B – maintains surface finish quality with larger milling cutter and drill diameters
- Wide range of 6-7 mm with a compensation tolerance of 0.5 mm – versatility when changing tools from different manufacturers without loss of clamping performance
- Durable 65Mn spring steel hardened to 44-48 HRC – resists plastic deformation when used with heavier tools
- Precise geometry with 16 symmetrically arranged slots – provides concentric clamping without the risk of damaging delicate shank surfaces
- Compliance with DIN 6499B and ISO 15488-B – fully interchangeable with ER11 clamping systems available worldwide
The ER11 7 mm collet is suitable for applications requiring stability at higher cutting torques and feed rates. Ideal for series production and prototyping, where flexibility in tool diameter selection improves production efficiency.
Frequently asked questions
The standard ER11 system goes up to 6 mm. The 7 mm collet expands the capabilities of compact machines, allowing larger diameters to be clamped without switching to the ER16 system.
It accepts shanks from 6 to 7 mm with a tolerance of half a millimeter. It fits end mills, twist drills, countersinks, and machine taps with these diameters.
The 65Mn steel with a hardness of 44-48 HRC and 16 stress-distributing slots ensure stability. The collet maintains its clamping performance even at higher cutting torques.
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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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