78319 Type: Single Angle Shank: 30 P.G. Collet Size: #75 Proj.: 2 9/32 in O.A.L.: 4 31/32 in Diameter: 2 1/8 in Dim. D (min): N/A Dim. D (max): 2 3/4 in Max. Dia.: 27/64 in Nut: 76484 Backup Screw: N/A Wrench: 64887 A- Proj. B- O.A.L. C- Diameter D- Dim. D E- Max. Dia.