OLFA OLFA BLADES EXCEL BLACK 10 PACK ULTRA SHARP 18MM BLA LBB1018mm Black Ultra Sharp Snap Off Blades Cat No: LBB 10 Qty: 10 Pack Take one look at these UltraSharp OLFA blades, and you'll see the sharpness of their edges. But you won't fully appreciate their precision until you use them. These blades are ideal for cutting construction materials including drywall, linoleum, carpet, flooring, insulation, conduit and roofing materials. (LBB 50B) Good For: Applications such as flooring, drywall and roofing repair or