This Milwaukee 2-Piece Fastback Flip Utility Knife Set (48-22-1909) is engineered to improve user productivity. Press and flip one-handed opening provides fast access to the blade. Tool free blade change allows the user to quickly and easily insert a new blade. Slim design permits easy carry in the user's pocket or tool belt. The 2 piece set includes the Milwaukee 48-22-1903 Fastback flip utility knife with blade storage and Milwaukee 48-22-1906 Fastback compact flip utility knife.