9 Piece, Bi-Metal Hole Saw Kit, Designed For Plumbers, Includes: 3/4", 7/8" 1-1/8", 1-3/8", 2", 2-1/2" Hole Saws, 2L & 5L Arbors, 5L Arbor Adaptor. Kits Are More Durable, Metal Pin Hinge Won't Break Or Tear, Lockable Standard Padlocks Can Be Used To Secure Kit Contents, Secure Metal Latches Close Case Tightly & Securely.