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Variable depth gullets provide more efficient chip clearance 4/6 Variable pitch teeth for reduced noise and improved performance Electron beam weld for stronger, longer lasting teeth Bi-metal construction for toughness and long life Includes: - 3/4", 7/8", 1-1/8", 1-1/2", 1-3/4", 2-1/4" hole saws - 3/8" hex arbor - 1/2" hex arbor - pilot drill |