11 Piece tungsten concrete hole saw kit for Concrete, brick, stone, cement drilling. $35 Includes 5 bits: 300mm, 40mm, 65mm, 80mm, 100mm (1 3/16", 1 9/16", 2 9/16", 3 1/8", 3 15/16"). Max shank and SDS connecting rods (11.8" long). 3 pilot bits, screw wrench and carry case. Used only smallest bit one time for brick (this set was cheaper than the one bit I needed, a cheap looking masonry bit from a big box store) . Worked well in brick - I used it wet but instructions say wet or dry.