Seco Indexable Threading Toolholder, Cylindrical Shank Heavy Duty, Series: Snap-Tap®, Internal, Right, 24 mm Shank Width, 23 mm Shank Height, 200 mm Overall Length, Insert Compatibility: 16NR, 40 mm Head Length, ANSI Code: CNR0025R16AHD, CNR Tool Holder, 16.3 mm Center to Cutting Edge, Clamp Insert Holding Method, Yes