These Olfa 18 mm Replacement Solid Blades are good for cutting through thicker materials & are great for managing accurate cuts on foam insulation board, foam sheets, rubber tubing, & more. Premium Japanese tool steel guarantees a superior sharp edge & excellent blade strength for a long-lasting blade. Control the depth of each cut with the option for full blade extension when you need it. These high-quality & durable 18mm blades are designed to exceed on the jobsite, in your workroom, or during home renovation projects. Sold as 10 PK of blades. Fits most Olfa 18 mm heavy duty snap-off utility knives.    Made in Japan.,OLFA brand blades are made with top quality materials, forged with technologies that stem from traditional sword-making, sharpened with technologies that give a blade life, and ultimately finished with the craftsmanship that brings all of this together. The holders and handles that allow users to gain the full cutting performance of these high quality blades are designed, developed and manufactured in Japan and subjected to stringent quality checks throughout the process.,For California Residents:,   WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov,WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood Olfa "L-SOL-10B" 18 mm Replacement Solid Blades - 10 Pack