Indexable Thread Turning Tool Holder, STVOR12-4B, Cutting Direction Right Hand, Shank Square, Shank Width 3/4 in, Shank Height 3/4 in, Overall Length 4-1/2 in, Insert Shape TNMC-432, Inscribed Circle 0.5 in, Insert Thickness 0.187 in, Width Offset 0.875 in, Mounting Style Screw Lock, Insert Screw GTS-2, Torx Wrench T-20