Exclusive K-Hook Blade Technology: Unlike traditional hook blades, our patented K-Hook features a wide R-curve design for push, pull, and controlled cuts. It offers better control, reduced slippage, and less fatigue during long use, ideal for roofing, carpet, leather, and more. Dual Blades for Maximum Versatility: Switch effortlessly between the K-Hook blade for curved cuts and the precision notch blade for straight cuts. No extra tools needed. One knife handles cardboard, plastic, linoleum, and even heavy-duty packaging with ease. Compact, Retractable & Lockable: The foldable design includes a 3-position retractable slider and a secure lock mechanism. Easily pocketed and safely stored, it’s perfect for contractors, roofers, and DIYers needing a powerful utility tool on the go. SK‑2 Steel Durability: Both blades are crafted from premium SK‑2 high-carbon steel with a hardness of HRC 60–62. This ensures long-lasting sharpness and resistance to wear, even under intense, repetitive cutting conditions. Fast Blade Switching & Safety Controls: Features a dual-blade switch, quick-change button, and safety lock. Quickly adapt to different materials without fumbling with extra parts. Speed, safety, and precision in one streamlined utility knife. Multifunction Cutting Power: The K-Hook blade combines the benefits of a hook and straight blade. Handle complex trimming, scoring, edging, or depth-sensitive tasks with one durable tool. Save time, reduce tool clutter, and cut confidently. Introducing the revolutionary POPLOCK Twin-Blade Folding Utility Knife, the ultimate tool for all your cutting needs. This compact and portable knife, also known as a box cutter retractable, is designed with convenience in mind, effortlessly fitting into any pocket, making it a perfect cardboard cutter and razor blade utility knife. Its versatility extends to being a carpet cutter, offering heavy-duty performance as a box cutter retractable for demanding tasks. The POPLOCK Folding Utility Knife stands out from conventional knives due to its hybrid design, making it ideal for a wide range of applications. Whether you're working with drywall, roofing, or any DIY home improvement project, this multifunctional knife is your go-to tool. One of the standout features of the POPLOCK Twin-Blade Folding Utility Knife is its Quick-Blade swap button, facilitating effortless transitions between the notch blade and hook blade. Changing blades has never been easier—simply press the Quick-Blade swap button, and swapping from a notch blade to a hook blade becomes a matter of seconds. This time-saving feature ensures seamless switching between different cutting tasks, eliminating unnecessary delays. The POPLOCK Folding Utility Knife equips you with a high-quality tool that combined with the innovative Twin Blades mechanism. The retractable blade ensures safety during storage and transportation, while the ergonomic handle provides a comfortable grip for prolonged use. Whether you're a professional roofer or simply need a reliable roofing knife for everyday cutting needs, this roofers knife is a must-have in construction. Don't settle for ordinary folding utility knives when you can have the extraordinary. POPLOCK Folding Utility Knife today and unlock a new level of cutting precision. This utility knife retractable design, also known as Navajas De Trabajo or Navajas Para Trabajo , is the perfect companion for any cutting job, delivering exceptional results every time.