3M's Trizact abrasive attaches to the JoolTool's backer pad. This long-lasting, peel and stick, pyramid structure sand paper is ideal for sharpening all types of tool steels. Contains 3 each: 35 micron (400 mesh), 20 micron (600 mesh), 10 micron (1000 mesh) and 5 micron (1800 mesh).