TUSK MULTI-TOOL MORTAR KNIFE High performance, premium quality end cut blade manufactured with high quality diamond, vacuum braised, cutting abrasive material. Designed for making long, linear, controlled cuts - perfect for the precision removal of grout lines, mortar or grout from between damaged brick or tiles. The curved hammer-head design quickly removes debris and reduces blade vibration and results in a smoother, faster cutting action. Multi-fit attachment to fit most brands.