Optimize your cutting tasks with our Handy Tek Black Dual Blade Utility Knives. These heavy-duty knives feature a quick change mechanism, making blade replacement swift and hassle-free. Equipped with a dual-blade system, these cutting knives accommodate trapezoid and hook blades for versatile use. The secure blade compartment of these box cutters provides a convenient storage solution for accommodating the included extra blades. With an ergonomic handle, these sharp knives give a firm and secure grip, perfect for extended use without fatigue. Crafted from high-carbon steel, these utility knives deliver exceptional sharpness and outstanding edge retention. These retractable utility knives offer 4 adjustable blade positions for versatile cutting needs. With a retractable design, these dual-blade cutting knives allow the blade to be safely tucked away inside the handle when not in use. The heavy-duty design makes these dual-blade knives perfect for cutting through tough insulation, rubber, and thick plastic. Featuring a convenient slider, these heavy-duty cutting knives allow you to extend or retract the blade, offering precise control over the blade length for various tasks. Each black utility knife has a durable zinc housing that does not break easily for long-lasting performance. These black cutting knives' TPR and PP over-molding grip provide a non-slip hold, enhancing precision and safety during use. Measuring 7 inches in length, these sharp utility knives feature a 19-millimeter wide blade, providing precise cutting performance for various tasks. Sold in 6 boxes with 6 knives, 12 trapezoid blades, and 12 hook blades.