Description
HOLEX ER collet for ER collet chucks.

Application
For clamping tools with plain shanks in ER collet chucks.

Product Data
ER size: ER20
Nominal clamping diameter: 12 mm
Version: Standard
Through hardened and ground
Polished
Concentricity: <=10 um

Note
Clamping range is generally up to 1 mm below nominal, except where catalogue specifies 0.5 mm.