Indexable Thread Turning Tool Holder, STVOR20-4D, Cutting Direction Right Hand, Shank Square, Shank Width 1-1/4 in, Shank Height 1-1/4 in, Overall Length 6 in, Insert Shape TNMC-432, Inscribed Circle 0.5 in, Insert Thickness 0.187 in, Width Offset 1.5 in, Mounting Style Screw Lock, Insert Screw GTS-2, Torx Wrench T-20