ER-Collet with cooling channels ER40 | 472ECC | < 15µm | Ø 21Application: For mounting straight shank tools in collet chucks DIN 6499. Note: Only nominal size d can be clamped, with cooling channels. In order to achieve an optimum sealing the tool must be clamped on the complete length of the ground drill of the collet. (applicable up to 21 bar)

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance1

For mounting straight-shank tools in collets

Hardening depth 0

Surface hardened HRC 58~60

For mounting milling cutters with transverse or longitudinal groove

With ball bearing clamping nut All holders are made of forged steel

critical factors for successful deep face grooving operations

With balanced clamping nut

With adjustable spray nozzle and shim

Precision coolant supply: Improves chip evacuation and decreases the risk for chip jamming

Sealing capacity up to 80 bar

For mounting straight-shank tools