ER-Precision collet | stainless steel ER20 | 428ESP | < 5 µm | Ø 11,0 - 10,5Rustproof Stainless steel 1. 4021 x 20Cr13 HRC 43 47 Longer lived than standard collets Higher repeat accuracy Maximum concentricity <0,005mm Honed collet boring Especially suitable fore wire EDM

For sealing tools with internal cooling

With built-in tightening bolt

Hardening depth 0

With wrench

- Rustproof

Effective from low to high coolant pressures

Taper angle tolerance < AT 3 according to DIN 2080

With adjustable spray nozzle and shim

For mounting straight-shank tools and inclined flat according to DIN 1835 form E (Whistle Notch)

LSCX = Clamping depth

With retaining screw

20 mm only with reduction sleeve)