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ER20 Collet – 3.5 mm - DARMET
Availability:
in stock
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Gross price:
$10.12
incl. 23% TAX, excl. shipping costs
Regular price:
The lowest price during 30 days prior to the reduction:
Net price:
$8.23
excl. 23% TAX, excl. shipping costs
Regular price:
The lowest price during 30 days prior to the reduction:
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Product code:
DM_TUL_ER20_03,5
Description
Properties and Application:
- ER collet designed for tools with a cylindrical shank.
- Clearly visible size marking on the face of the collet.
- Fully compatible with standard ER nuts.
- Precision-machined grooves allow for flexibility; tightening the nut causes the collet to contract and expand.
- Clamping range: 3.5 - 3.1 mm.
Technical Data:
| Parameter | Value | Unit |
|---|---|---|
| d | 3.5 | mm |
| D | 20.0 | mm |
| D1 | 21.0 | mm |
| D2 | 17.4 | mm |
| L | 31.5 | mm |
| L1 | 6.36 | mm |
| L2 | 4.8 | mm |
| L3 | 2.8 | mm |
Assembly of Collets in Nuts:
 |
||
| Collet assembly in the holder nut | Collet correctly installed | Collet disassembly |
To correctly install the ER collet in the tool holder:
- Insert the collet into the nut at an angle.
- Hook the collet groove onto the eccentric or cylindrical extractor ring of the nut (Fig. A).
- Push the collet into the nut until it clicks (Fig. B).
- Screw the nut with the clicked-in collet onto the holder so that the tool can be clamped.
Maximum Clamping Diameters by ER Collet Type:
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