This carbide grit triangular sanding pad works with Multipurpose Oscillating Tools to grind and rasp wood, cut hardened adhesives and thin set from masonry and concrete and etch or rasp masonry. The 3.1 in. pad provides enough surface area for fast stock removal while fitting easily into tight spots. High quality carbide grit stays sharp with the toughest materials and provides up to 2x Life compared to similar products in its class