Tap Extension, Overall Length 5.00 in, Steel, For Tap Square Size 0.1520 in, Fits Tap Size #8, For Tap Shank Dia.
1680 in, Shank Dia.Tap Extension,Material HSS,5" L 5/16 in, Coolant Fed Non-Coolant Through, Extension Square Size 0. 0.1940 in, Body Dia.