Self-retracting spring action returns blade safely into the housing when not in use. Interlocking nose reduces blade wobble, ergonomic grip fits comfortably in the hand. Two blade positions, 2 mm extension for box cutting and full extension for general use. Tool-free entry.
XW Auto-Retractable Safety Utility Knife, Box Cutter of Quick Blade Change, 4 Spare Blades Storage in Handle
Stanley Safety Knife, Self-Retracting, 5 7/8 in L, Rounded Steel Safety Blade, General Purpose, Orange 10-189C
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Irwin Self-Retracting Safety Knife, 'Stanley' Blade Type Knives, Knives & Blades, Saws & Knives, Hand Tools, Hand Tools & Power Tools
Irwin Self-Retracting Safety Utility Knife (2088600)
IRWIN Utility Knife, Self-Retracting for Safety (2088600) , Red - Utility Knives