Tools with auto retraction require pressure on the slider to keep the cutting edge extended. If the user releases the button, the blade automatically retracts into the handle. This design enhances box cutter safety because the blade stays hidden when it's not in use. Products like the Slice Smart-Retracting Utility Knife take cutting safety a step further than standard retractable box cutters. A pull slider provides a natural grip that reduces hand fatigue, and the blade automatically retracts into the safety cutter handle when it loses contact with the material you're cutting, even if you're still holding the slider. Health and safety officers will appreciate this added layer of safety to reduce workplace injuries.