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".
Part #s 918 and 953 are only furnished with one 1/2" x 3/4" bushing due to size.
