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ER collet for machine taps, ER 25, Nominal clamping ⌀ d: 7mm
Article no.: 309457 7
Article code:
Product details
Technical Data
| Holder type | collet taper | |
| Holder shape | collet taper adjustment angle 8° | |
| Holder version | dimensionless nominal size without cooling | |
| Holder size, no dimensions | 25 | |
| Type of mounting | spigot | |
| Holder | ER 25 | |
| Clamping diameter | 7 mm | |
| Clamping length | 5 mm | |
| External diameter | 25 mm | |
| Length of collet | 40 mm | |
| Shape | conical | |
| Taper angle | 16 degrees | |
| Installation length | 34 mm | |
| Standard | DIN 6499 | |
| Interface | joint 1; joint 2 | |
| Type of product | collet | |
| Content | single part |
Identification & Classification
| Article number | 309457 7 | |
| EAN / GTIN | 4062406254094 | |
| Manufacturer number | 309457 7 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
- The tap is clamping by a recirculating ball clamping mechanism.
- Integral quick-change device.
- Collets for thread tapping, similar to DIN 6499 / ISO 15488.
Advantage:
Quick locking/unlocking by spring mechanism. No screw clamping required on the square drive flats of the tap.
Suitable for:
All standard ER collet chucks.
Note:
Clamps only the nominal ⌀. Not compatible with the CENTRO P precision ER collet chuck.