CARBTIP 5 Piece 1/2" Shank Indexable Carbide Tool Set Industry # TCMT32.52 inserts C2 carbide tips with chip breaker 2 pieces style A for turning, facing, boring and chamfering 2 pieces style B for turning, facing, boring and for lead angles 1 piece style E for turning, facing, boring, chamfering, threading and V-grooving;