For wood, plastic, and compositions to 3/4" thick. Heat-treated high-carbon steel. Includes 4 saw sizes (1-1/4", 1-1/2", 2", and 2-1/8"), mandrel and pilot drill. No. 988091DB: Pieces In Set: 5 pcs, Kit Contents: 4 Hole Saws,1 Mandrel-Pilot Bit,Carded,...