050020 D Standard ER20 collets, DIN 6499 / ISO 15488, diameter at your choice
(Incl. Tax: €11.59)
ER20 self-extracting collets DIN 6499 B Type 050 are designed for high-precision tool clamping in ER systems, ensuring excellent runout accuracy and consistent repeatability. The self-extracting feature allows easy release from the nut, reducing tool change time and preventing damage. Made from hardened and ground alloy steel, they provide high stability, vibration reduction, and control of geometric errors, ideal for CNC machining operations such as milling, drilling, and tapping.

ER20 self-extracting collets DIN 6499 B Type 050 are designed for high-precision tool clamping in ER systems, ensuring reliability, fast tool changes, and process stability. The self-extracting feature allows controlled release from the nut, reducing setup time and preventing damage during removal.
Manufactured from hardened and ground alloy steel, they provide excellent runout accuracy and uniform clamping force distribution, minimizing geometric errors, eccentricity, and vibration during machining. DIN 6499 B compliance ensures full compatibility with all standard ER20 toolholders.
The clamping range, available in precise increments (0.5 mm or 1 mm), allows optimal control of dimensional tolerances and transmission play, improving stability even at high speeds.
These collets are ideal for milling, drilling, boring, tapping, and grinding operations, especially in high-precision environments requiring repeatability and geometric control.
ER20 Self-Extracting Collets DIN 6499 B - Technical Data
| Type | D | L | X min | X max | Gripping range |
|---|---|---|---|---|---|
| ER 20 | 21 | 31 | 1.0 | 3.0 | 0.5 |
| ER 20 | 21 | 31 | 4.0 | 13.0 | 1.0 |

Rotational concentricity test
| Bore D Min |
Bore D Max |
L | Max concentricity limit (Standard collets)* |
Max concentricity limit (High precision collets)* |
|---|---|---|---|---|
| 1 | 1,6 | 6 | 0,015 | 0,010 |
| 1,6 | 3 | 10 | 0,015 | 0,010 |
| 3 | 7 | 16 | 0,015 | 0,010 |
| 7 | 10 | 25 | 0,015 | 0,010 |
| 10 | 18 | 40 | 0,020 | 0,015 |
| 18 | 26 | 50 | 0,020 | 0,015 |
| 26 | 40 | 60 | 0,020 | 0,015 |
*The tolerances are valid only for nominal diameter of the collets
- Brand:
- TADAAH
- Typology:
- Standard ER collet
- Size:
- ER20 - 428E
