10 Piece, Bimetal Hole Saw Kit, Designed For Electricians, Includes: 7/8", 1-1/8", 1-3/8", 1-3/4", 2", 2-1/2" Hole Saws & 2 Arbors, 1 Extra Pilot Point Bit & 1 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.