Concealed Blade Safety Knife Featuring An Adjustable Blade Positioning Design Which Allows For 4 Cutting Points On A Single-Edge Utility Blade. Highly Productive, It Delivers 4X"S More Cuts Than A Single-Edge, Fixed Blade "Gooseneck" Safety Knife. Uses The Olfa Skb-10 Blade, A Single-Edge Blade Featuring 1 Blunt Edge For Safer Handling. Made Of High-Quality Japanese Grade Carbon Tool Steel And Designed For Unparalleled Sharpness And Superior Edge Retention. Versatile, It Features A 5/32" (4Mm) Throat Inlet To Cut Through A Variety Of Materials, And A Stainless Steel Tape Slitter For Box Tape Slitting. Acetone Resistant For Easy Cleaning. Fits Both Right- And Left-Handed Users With No Blade Adjustment Necessary. Tool-Free Blade Change. Good For: Shrink Wrap, Plastic Strapping, Stretch Wrap, Plastic Sheeting, Bubble Wrap, Leather, Nylon, Belting, Sacks, Bags, Tape Slitting.