Lutz 357 Heavy Duty Utility Knife - Sharp Retractable Blade for Cutting Boxes, Carpets, and DIY Projects - Perfect for Home, Office, and Construction Use

The Lutz company has finally solved the nagging problem of most utility knives - how to change the blade. This solid tool allows easy access to its internal storage compartment and sliding mechanism with a simple pull/turn handle cap. Never again find yourself stranded at the top of a ladder with no screwdriver to change the blade in your knife. This blade is so easy to change, you will never cut with a dull edge again!

Patent Pending.