Collet Chuck, ER-25, 2MT, Professional Grade 

2MT to ER-25 professional grade collet chuck. Premium 20CrMnTi alloy steel hardened and all ground body for extended tool life. Has a superior finish (electrolysis nickel coating).

The maximum RPM is 8,000 and the maximum runout is 0.0003" (0.0076 mm). Requires 38-42 spanner wrench (not included).

ER-25 collets have a range of 1/16" to 5/8" (1.0 mm to 16.0 mm).

*Collet must be assembled into a collet chuck nut before inserting into the collet chuck.