Use the Serdi-Style Counterbore Cutter Drivers with the GOODSON 3-D Fast Cut™ Valve Guide Cutting System. With these counterbore cutter drivers you won't need to change drive adaptors to use indexable counterbore cutters.
Now available for 9/16" arbor AND 5/8" arbor cutters.
Fit Serdi and Rottler SG-9A and SG-9M.
