X-Acto Snap-Off Blade Utility Knife

You can use this knife for heavy-duty cutting of foamboard, matboard, cardboard, dry wall, vinyl, and carpet.

Loosen the ratchet wheel to adjust blade length, then lock it in place to prevent blade slippage when cutting. High-grade carbon steel blade and stainless steel blade channel provide durability.

A built-in attachment snaps off dull, used blades. A storage compartment holds two replacement blades, each with eight cutting edges (included with knife). The contoured handle provides a sure, comfortable grip.