GS Tooling CAT50 4.00" ER20 Collet Chuck - 531440
Shank Type: Taper Shank
DIN Coolant option - standard
All Ground Body
Factory Balanced to save spindle life, tool life and increased productivity
Threaded through holes for a back-up screw (tool stop) or coolant through when removed
Wrench not included
Premium balanced to G2.5 @ 30,000 rpm