Klein Tools 4-1/2'' Bi-Metal Hole Saw

Klein Tools 4-1/2'' Bi-Metal Hole Saw has the ability to cut through steel and cast iron. The rugged cobalt bi-metal construction provides maximum longevity. Cuts faster and smoother while reducing chatter with the variable pitch teeth. The multiple knock-out slots and holes allow for easy removal. With one pass, the hole saw creates deep cuts through studs and the long-lasting design allows more cuts per saw.