Cut holes in a variety of materials with the DeWalt Hole Saw Kit, which includes 11 bits, 2 mandrels, and a convenient storage and carrying case. Install door lock sets, cabinets, and entertainment systems with this 13-piece hole saw set. Bi-metal saw blades cut through hard and soft materials, like stainless steel, wood, and plastic. A long pilot bit marks the centres of holes. Two mandrels keep the saws connected to drills. The molded case provides organization and portability. The kit includes: 11 common hole saw sizes from 3/4" to 2 1/2", 2 quick change mandrels: 9/16" - 1 3/16" and 1 1/4" - 6". This replacement set also includes 2 set screws, 2 pilot bits, and 1 hex key and a carrying case with spots for storing each piece. The case also includes a compartment with a clear lid for storing additional hardware.