Craftsman Professional Universal Quick Change Hole Saw Kit
4 hole saws 1- 1" hole saw; 1-1-1/2" holes saw, 2-1/8" hole saw and 2-1/2" hole saw3/8" mandrel and pilot bit. Two quick change adapters makes any hole saw a Quick Change hole saw. Progressor tooth design allows for faster cutting and long life. Reinforced shoulder for increased strength and longer life. 8% cobalt alloy for high heat resistance and longer life.