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", #956, (D) diameter 2-5/8, (D) bore 1/2 & 3/4, (b) Cutting height 1-1/2 956 carbide Tipped 3-wing straight edge 2-5/8 DIA x 1-1/2 x 1/2 & 3/4 Bore.