Positive rake makes for smooth cutting without chatter. Carbide indexable.
3pcs/set: 1/4", 1/2", 1-1/4" (each cutter comes with 1 pc insert installed)
No tool resharpening needed.
Triangle inserts (additional inserts are sold seperately) for 1/4"-3/4" x 1/2"shank is TCMT32.51 (item #2224-1034)
Square insert ( additional inserts are sold seperately) for 1/2" - 1-3/4" x 1/2"shank, SCMT431 suqare insert for 1-1/4" - 2-1/4" x 3/4"shank is SCMT431 (item #2224-1058)
Includes three sizes (1/4", 1/2", 1-1/4") for diverse countersinking needs, each designed with a 90° angle for perfect flush finishes.