Indexable Thread Turning Tool Holder S10S-NEL-2 Cutting Direction Left Hand Shank Round Shank Dia 5/8 in Overall Length 10 in Insert Shape TopNotch NG-2L Inscribed Circle 0.1875 in Insert Thickness 0.15 in Width Offset 0.5 in Height Offset 1 in Mounting Style Clamp Lock Clamp CM-75 Clamp Screw S-310