Safety utility knives protect against injury by automatically retracting or covering their blade when the cut is complete. Only one corner of the blade is exposed at a time, so the blade can be flipped to the fresh cutting edge when the first one dulls. Utility knives make pull cuts using small, disposable blades attached to the knife handle. They score drywall and insulation and cut cardboard, plastic sheeting, card stock, cord, and more.
Automatic Retracting Utility Knives
Automatic safety knives retract their blade when the user releases the push button or slide mechanism.