Milwaukee 15 Piece Hole Saw Kit Rip Guard offers exceptionally strong tooth form with added steel behind cutting edge Includes eight hole saws: 3/4 in., 7/8 in., 1-1/8 in., 1-1/2 in., 2 in., 2-1/8 in., 2-1/4 in., 2-1/2 in. Bi-metal construction with 8% cobalt for increased wear resistance, Features two arbors, four pilot bits and one hex key Plug Jack provides an all-access slot design for fast plug removal Rip Guard protected by Limited Lifetime Tooth Break Warranty