The carbide rasp accessory is a versatile accessory that can be used for grinding and shaping flat surfaces, as well as inside surfaces that are difficult to reach any other way. The carbide rasp allows the SawMart to be used for grinding cement, thin-set mortar, tile adhesives, stone and rasping wood. Preparing the surface for tile replacement is a common application for this accessory. 1.The carbide rasp accessory is suitable used for rasping and grinding 2.Use on cement, plaster, thin-set mortar and wood 3.Versatile accessory Preparing the surface for tile 4.replacement is a common application for this accessory User Tips For rough grinding, shaping and smoothing of masonry, stone, cement and mortar. Preparing the surface for tile replacement is a common application for this accessory. Do not apply excessive pressure – let the tool do the work. Select a low to high speed depending on the material removal rate desired.