Rub collar (sold separately) for 3/4" arbor only! , #SC582, (D) Diameter: 2-27/32, (d) Bore: 1/2 & 3/4, (B) Cutting Height: 1-9/16, (R) Radius: 5/16, C: 17/32, C1: 1/8, D1: 1-27/32, L: 1/2, Optional Rub Collar: C-007, T: 7/32SC582 2-Piece Carbide Tipped 3-Wing Stile & Rail Bead Cabinet Door 2-27/32 Dia x 1-9/16 x 5/16 Radius x 1 & 1-1/4 Bore Set for 1-3/8 Material