Over 250 different cutters for all your shaping needs. Extra-thick carbide tips offer many rehappenings and longer tool life. RPM rating: 12, 000 and under. Cutters are furnished with either 1/2, " 3/4" or 1-1/4" bore. Cutters with 3/4" bore include 2 reduction bushings (1/2" x 3/4") which will reduce the bore to 1/2. Cutters with 1-1/4" bore include 2 reduction bushings (1" x 1-1/4") which will reduce the bore to 1", #955, (D) Diameter 2-5/8, (d) Bore 1/2 & 3/4, (B) , cutting Height 1, 955 Carbide Tipped 3-Wing Straight Edge 2-5/8 Dia x 1 x 1/2 & , 3/4 Bore