77799 Adapter Size: #1 Tap Size Range: 0 – 9/16 HAND to 1/8 PIPE Shank Size: 7/8–12 Shank Length: 3.62 in Proj.: 2.81 in Body Length: 2.40 in Body Dia.: 1.25 in Radial Float: +- / 1/32 in A- Shank Length B- Proj. C- Body Length D- Body Dia.