fortis Collet chuck DIN 2080 SK40-ER25

- Tool holder DIN 2080 Form A
- Made of alloy case hardening steel
- Hardened 58 ±2 HRC, min. 0.5 mm deep
- Tensile strength in the core after case hardening approx. 950 N/mm²,
- Taper DIN 254
- Taper angle tolerance AT3
- Surface accuracy of the taper Ra <0.001 mm
- Concentricity 0.016 mm
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Balance quality G 6.3 at 8000 min-1
- To accommodate tools with cylindrical shank in collets according to DIN 6499 (ER)