PART OF CATALOG
ER-Precision collet ER20 | 428EP | < 5µm | O 4 - 3
OZ-Precision collet OZ32 | 467EP | < 5µm | O 3 - 2,5
Collet sets 428E (ER20; 12 parts) in wooden box DIN 6499 (ISO 15488)
Hydraulic expansion chuck SK 40 – 08 – 68
Application:
For mounting straight-shank tools acc. DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE (larger than dia. 20 mm only with reduction sleeve).
Note:
l1 = max. clamping depth l2 = max. length adjustment range
Without wrench
- All holders are made of forged steel
- Specific, low warpage hardened
- Surface hardened HRC 58~60
- Hardening depth 0,8mm~0,9mm
- Taper angle tolerance < AT 3 according to DIN 2080
- Surface roughness Ra < 0,4 µm
- Tensile strength in the core of min. 800 N/mm? after DIN
- All functional surfaces fine machined
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