Take control of every cut with the OLFA 18mm LA-X Fiberglass Utility Knife. The included LBB Heavy-Duty Ultra-Sharp Black Snap-Off Blade automatically locks firmly in place and offers a new sharp edge every time you need it. Up to 25 Percent sharper than standard silver blades, Ultra-Sharp Black Blades deliver precision detail on every cut. The stainless-steel housing extends through the handle to keep the blade in place under pressure, adding rugged stability and jobsite performance. The chemically resistant handle is reinforced with fiberglass and built to work as hard as you do. Attach a lanyard to the porthole at the base of the handle to ensure your best utility snap knife is always at the ready. Control the blade with a single touch. The auto-lock slider extends and retracts into pre-set detents to accommodate varying depths with speed and accuracy. When additional construction tasks threaten the blade's sharp edge, opt for the metal pick at the back end of the knife. Use the pick to scrape, pull, or pry difficult material. The ergonomic wraparound rubber grip reduces stress on your hands, prevents slips, and guarantees an easy cut. No tools are required to change the snap blade, simply snap for a new edge. Accepts most OLFA 18mm blades including: LB Silver Snap Blades, L-SOL Solid Silver Blades, LWB Serrated Edge Blades, LFB Ultra-Sharp Black Speed Blades, and LH Hook Snap Blades.