ER-Collet with cooling channels ER20 | 428ECC | < 15µm | Ø 8Application: 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)

Standard type without safety clutch

Hardened and grinded all around

5 x 58 x 18

E2= 14 pieces

The fine-adjustment allows the slider to be precisely positioned

without a tool

clamping depth 2 mm

Carbide tipped scriber with clamp

The chucking diameter is configured for a tool tolerance of h6

6 stepped block pairs (12 pcs)

For mounting solid drills with cylindrical shank according to DIN 6595

Type with adjustable safety clutch