Switch out blades quickly and safely with HART’s Auto-Loading Utility Knife. Lightweight yet heavy-duty, this knife features a quick-change mechanism that accepts standard size utility blades. The simple 3-step auto-loading feature allows you to replace a dull blade with a sharp one with minimal exposure. Simply extend and remove the old blade, retract and then extend for a sharp new one. You’ll be able to slice and cut through packages, boxes, paper, plastic, packing tape, labels, stickers and more with ease. The ergonomic overmold grip provides both a comfortable and superior grip. The other design aspect you’ll appreciate is the on-board blade storage that holds 10 total blades - 5 in storage and 5 in the autoloading compartment. In addition to the knife, it also comes with 3 heavy-duty blades along with a limited lifetime warranty.