Product Overview ER40 STRAIGHT SHANK COLLET CHUCK Coolant Thru' Type Item(s) 1 Pc. ER40 Straight Shank Collet Chuck 1 Pc. C-Spanner Specification DIN6499B 0.015MM (0.0006") Run-Out Tolerance High Grade 1065 Carbon Steel Hardened & Precision Ground Shank Length 100MM Product Photos Additional Technical Information