Stanley 10-189 Self-Retracting Safety Knife with Rounded Blade

The Stanley 10-189 is a self-retracting safety knife designed for controlled trimming and cutting tasks with minimal injury risk. The blade extends only while the thumb button is pressed and automatically retracts when released, with a rounded-end blade supplied as standard for added safety. Ideal for electricians, carpenters, and trade professionals who need a reliable, thumb-controlled cutting tool for drywall, insulation, cable sheathing, and general material trimming.