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, Includes 9 hole saw sizes, 3/4 -inch, 7/8 -inch, 1-1/8 -inch, 1-3/8 -inch, 1-1/2 -inch, 1-3/4 -inch, 2 -inch, 2-1/8 -inch and 2-1/2 -inch, two arbors, 2 total pilot bits, hex key and case