Fahrion Collet chuck DIN 6499 B 428E GERC20 4,0 mm

Precision collet, GERC20-B - System ER

Clamping means

- DIN ISO 15488-B (old DIN 6499)
- System ER20
- Surface roughness: RA < 1,6 µm
- All longitudinal edges rounded
- Concentricity: < 5 µm
- To accommodate tools with straight shank according to DIN 1835 B, 1835 E, 6535 B and 6535 E

Note: The clamping diameter
bridging is 1.0 mm (below Ø 2.0 mm = 0.5 mm). The largest Ø is always specified, i.e. Ø 16.0 mm clamps back to Ø 15.0 mm (labeling e.g. GER 32 F 470 E16).