Hole Dozer Electricians Bi-Metal Hole Saw Set (19-Piece)Featuring 19 pieces, this Hole Dozer Bi Metal Hole Saw Set is built with solid steel for exceptional durability. Each set includes 14 different hole saw sizes: 3 4 in., 7 8 in., 1 1 8 in., 1 3 8 in., 1 1 2 in., 1 3 4 in., 2 in., 2 1 4 in., 2 1 2 in., 2 5 8 in., 3 in., 3 5 8 in., 4 1 8 in. and 4 3 4 in. Features rip guard teeth, teeth built with more steel behind the cutting edge for added durability Comes with a limited lifetime tooth break warranty