Get the job done right the first time! Spring-loaded aluminum rail holds work in place and prevents snag cuts, making your work look clean and professional every time. Patented removable X-ACTO® hardened steel blade cartridge is perfect for cutting paper, photos, cardstock, plastic and more. Safety-cutting edge is only exposed when you engage the blade, so it helps prevent accidental injury. Enhanced standard and metric grid for accurate and easy-to-read measurements. Sturdy metal construction for lifetime use.