ER-Collet with cooling channel holes ER40 | 472EC | < 15µm | Ø 17Application: 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)

B4 - 25 x 16 x 30

Surface roughness Ra < 0

For mounting straight-shank tools in collets

800 N/mm² after DIN

With adjustable spray nozzles

For d = 60 only with four fi xation screws according to DIN 912

- Rustproof

Collets sealed for high pressure cooling 120 bar

with cooling channels

For mounting screw-in cutters with thread

ER-system with spray nozzles

For the chucking of quick change adaptors for taps