Dremel's line of Max Life high-performance accessories provides long-lasting performance and impressive durability. Built to give DIYers longer lasting, stronger performing, versatile accessories. The Max Life EZ511HP features two finishing abrasive buffs that are engineered to last at least 4X longer than the 511E. The Max Life accessory set include two versatile sanding buffs in one convenient package. Great for detail cleaning, light sanding, furniture refinishing, or paint removal on delicate materials. The buffs can be used on wood, plastic, glass and metals such as steel and aluminum. The set includes a very fine 180 grit buff with a 1-3/16" (30 mm) diameter and an extra fine 280 grit buff with a 1-3/16" (30mm) diameter. The accessories are compatible with the patented EZ Lock™ system making accessory changes 6X faster than using a standard mandrel. For use with the EZ402 EZ Lock mandrel or standard 402 mandrel.