The Milwaukee Self-Retracting Safety Knife enhances safety by retracting the blade when the button is released. Two blade positions allow you to choose the cutting depth of the blade to minimize damage from over-cutting. Tool-free blade changes let you make adjustments quickly and efficiently, with on-board storage for up to 5 blades. The slim, lightweight, all-metal body takes up less space but stands up to jobsite abuse. The Self-Retracting Safety Knife accepts all utility blades and comes with two carton blades with rounded tips.