Irwin 373434BX Hole Saw, 4-3/4 in Dia, 3/8 in Arbor, 4/6 TPI, HSS Cutting Edge

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. Features: - 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