77792 Adapter Size: #3 Tap Size Range: 13/16 – 1 3/8 HT to 3/4 & 1 PT Morse Taper: #4 Length: 4 5/8 in Proj.: 5.27 in Diameter: 2.83 in Radial Float: +- / 1/32 in A- Length B- Proj. C- Diameter