Indexable Thread Turning Tool Holder S16T-NER-3 Cutting Direction Right Hand Shank Round Shank Dia 1 in Overall Length 12 in Insert Shape TopNotch NG-3R Inscribed Circle 0.375 in Insert Thickness 0.195 in Width Offset 0.688 in Height Offset 1.375 in Mounting Style Clamp Lock Clamp CM-72 Clamp Screw S-412