Irwin Bi-Metal Hole Saw 3-1/2” 89 mm # 373312BX Pack of 2

Key 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;Hole saws bi-metal dia. 2-1/2 inch. 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.