Cutter with 1/2" Arbor Hole fits various key cutting machines by the following manufacturers:
Curtis: 2000
Dominion Lock: 145, 145M, 147, 147M, 149M
HPC: 9100, 9110
ILCO: 008, 008A, 008B, 2184CD, H2584CV, 2585DU
Keil: 4, 4 1/2, 12, 12 1/2, 13 1/2, 15
Taylor: KD1, KD5, KD20