Deli 1/3Box SK5 Metal Utility Knife Blades 9mm/18mm Home School Art Craft Paper Cutting Tool Box

SK5 high-carbon steel – stays sharp and resists chippingTwo size options – 9mm for fine detail, 18mm for heavy cutsCuts cleanly through paper, cardboard, and craft materialsUniversal fit – works with most standard utility knivesSecure storage box – keeps blades organized and safely containedDependable for home, school, and studio projectsEasy snap-off design – fresh tip ready in seconds (for 18mm type)Cost-effective refill – long-lasting performance for frequent use