Irwin Bi-Metal Hole Saws 4-1/2-Inch U S Craftmaster Includes factory pre-set 30/50 pressure

Includes factory pre-set 30/50 pressure switch - produces up to 50 psi with automatic shut-off

high speed molybdenum steel

It features thermal-bonded black 1/8" graduations that are large and bold for easy reading

Pairs with up to 20 total lights on the same switch

lighter design and XLT (Xtreme Leverage Technology) for easy cutting with less force

Irwin Bi-Metal Hole Saws 4-1/2-Inch U S Craftmaster Includes factory pre-set 30/50 pressureVariable depth gullets provide more efficient chip clearance4 6 Variable pitch teeth for reduced noise and improved performanceElectron beam weld for stronger, longer lasting teethBi metal construction for toughness and long life