Mountain Tools and Equipment offers the 5-piece Hole Saw Kit No. MTN55880. Features and benefits include professional grade bi-metal hole saw; cobalt high speed steel teeth that resist heat and wear; and the ability to cut 1-1/2" deep holes, as well as hard and soft metals, nail embedded wood, wood and fiberglass. The kit includes 7/8", 1", 1-1/8", 1-1/4", 1-1/2", one arbor and adapter, and is perfect for use on all types of metal.