Indexable Thread Turning Tool Holder AS-16R-ADNEL-3 Cutting Direction Left Hand Shank Round Shank Height 1.3800 in Shank Dia 1 in Overall Length 1 in Insert Shape TopNotch NG-3R Inscribed Circle 0.375 in Insert Thickness 0.195 in Width Offset 0.69 in Height Offset 1.38 in Mounting Style Dor-Lock Clamp JSLC-HP72 Clamp Screw JSCS-04