COLLET ER25, 3/8″ HOLE

ER25, Hole Size 3/8″.
Tool holding range 0.375″ to 0.336″.
Made of high alloy spring steel.
Hardened surface to 44-48 HRc.
Maximum gripping force with 16 jaws.
Runout precision of 0.0004″ (Concentricity of .0002″).