Milwaukee 4932471360 Self Retracting Safety Utility Knife

Self-retract mechanism: Retracts blade when the button is released.
Two blade positions allows user to control cutting depth.
Blade storage holds up to 5 blades conveniently inside the handle.
Tool-free blade change: Saves time changing blades. Thumb-screw mechanism allows to change the blade quickly and without any extra tools.
Heavy Duty: Durable full metal body.

STORES 5 EXTRA BLADES