Description Built for durability is this Hole Dozer Bi-Metal Hole Saw Set. It is solid steel with 15 pieces. Each set has 11 different hole saw sizes. Included are: 3/4 in., 7/8 in., 1 in., 1-1/8 in., 1-3/8 in., 1-1/2, 1-3/4 in., 2 in., 2-1/8 in., 2-1/4 in. and 2-1/2 in.PRODUCT DETAILS: Most durable hole saw; Period; comes with a limited lifetime tooth break warranty Features RIP GUARD teeth, teeth built with more steel behind the cutting edge for added durability Coated with a low friction, thermoset paint that provides faster cutting speed in wood and more holes cut per battery charge Equipped with plug jack, an all-access slot design for fast plug removal Features bi-metal construction with 8% cobalt for increased wear resistance Cuts through clean wood, nail embedded wood, plastic, aluminum, metal and stainless steel Made in USA Includes 11 hole saw sizes, 3/4 in., 7/8 in., 1 in., 1-1/8 in., 1-3/8 in., 1-1/2 in., 1-3/4 in., 2 in., 2-1/8 in. 2-1/4 in. and 2-1/2 in., 2 arbors, 4 total pilot bits, hex key and case