ER-Collet with cooling channel holes ER40 | 472EC | < 15µm | Ø 10Application: 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

- Automatic switch-on when the measuring surface is moved

Hardened steel

Head turnable for 360°

- Bed height H: 0

vertical and lateral

Rolled thread

Made of sturdy grey cast iron with hollow profile handles and specially guided prismatic steel jaws

One turning toolholder - four possibilities:

For right-hand and left-hand threads

edge radius 1 mm

Zero-setting at any position for incremental measurement