Indexable Thread Turning Tool Holder MTVOL20-5D-A Cutting Direction Left Hand Shank Square Shank Width 1-1/4 in Shank Height 1-1/4 in Overall Length 6 in Insert Shape TNMA-543 Inscribed Circle 0.625 in Insert Thickness 0.25 in Width Offset 1.5 in Mounting Style Multi-Lock Clamp CL-6 Clamp Screw XNS-36 Insert Screw NL-56