Indexable Thread Turning Tool Holder S24U-MTHOL-4-C Cutting Direction Left Hand Shank Round Shank Dia 1-1/2 in Overall Length 14 in Insert Shape TNMC-432 Inscribed Circle 0.5 in Insert Thickness 0.187 in Width Offset 1 in Height Offset 2.25 in Mounting Style Screw/Clamp Clamp CL-7 Clamp Screw XNS-36 Insert Screw GTS-2 Torx Wrench T-20