JNBPRO Utility Knife Blades – SK5 Black Carbon Steel | 10-Pack The JNBPRO Utility Knife Blades are designed for professionals who demand precision, durability, and long-lasting cutting performance. Manufactured from premium SK5 Black Carbon Steel, these heavy-duty replacement blades provide exceptional edge retention and clean, accurate cuts across a wide variety of materials. Compatible with most standard utility knives and box cutters, these blades are ideal for construction professionals, cabinet installers, woodworkers, flooring installers, warehouse personnel, and DIY users. Each blade is precision-ground for maximum sharpness and comes in a durable safety dispenser for convenient storage and blade replacement. Features Premium SK5 Black Carbon Steel Precision-ground cutting edge Long-lasting sharpness Heavy-duty professional quality Fits most standard utility knives and box cutters Durable safety storage dispenser Ideal for professional and everyday use Specifications Model: JP10UK Material: SK5 Black Carbon Steel Blade Type: Standard Utility Knife Blade Quantity: 10 Blades Storage Case: Included