Collet Chuck, ER-11, Straight Shank, Professional Grade

This ER-11 collet chuck straight shank tool holder is a great tool for supporting small end mills and engravers. It is made of 20CrMnTi alloy steel and is balanced to 18,000 RPM. The maximum runout is 0.0003" (0.0076 mm).

ER-11 collets have a range of 1/32" to 1/4" (0.5 to 7.0 mm). The overall length is 3.457" (88 mm) and the width at the nut is 0.748" (19 mm).

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