SODIAL(R) Straight High Speed Steel Metric Taper and Plug Tap 5/16-32UNF Product Name : Taper and Plug Tap;Model : 5/16-32UNF Flute Diameter : 8mm/ 0.31"(5/16");Flute Teeth Pitch : 1mm / 0.04" Shank Diameter : 6mm / 0.24";Thread Length : 19mm / 0.75" Total Length : 68mm / 2.7";Material : HSS Weight : 19g