ER-Precision collet | stainless steel ER11 | 4008ESP | < 5 µm | Ø 4,0 - 3,5Rustproof 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

(applicable up to 21 bar)

- HRC 43-47

For the manufacturing of special tools

Improves chip evacuation and decreases the risk for chip jamming

Taper angle tolerance < AT 3 according to DIN 2080

For mounting straight-shank tools in collet chucks DIN 6391

better process security and productivity

For mounting tools with straight shanks

- Maximum concentricity <0

contact- and hot air shrink units

With retaining screw