Indexable Thread Turning Tool Holder Integral Toolholder Cutting Direction Left Hand Shank Square Shank Width 10.00mm Shank Height 10.00mm Shank Dia 0.394 in Overall Length 125.00mm Insert Shape Triangle Lead Angle 7.5 Degrees Inscribed Circle 20.00mm Mounting Style Screw/Clamp Clamp Screw T15 Insert Screw T15 Torx Wrench TX15