Dremel's line of Max Life high-performance accessories provide long-lasting performance and impressive durability. Built to give you longer lasting, stronger performing, versatile accessories. The Max Life EZ545HP Diamond Wheel is engineered to last 3X longer compared to EZ545. The cutting wheel is completely coated with fine diamond particles for working with hard materials. The diamond coating adds durability and longevity, while producing smooth & precise cuts; ideal for cutting in hard and abrasive materials like marble, concrete, brick, porcelain, ceramics, hard epoxy, and soft or hardwood. The EZ545HP features 1-1/2 In. (38.1mm) diameter and is designed with the patented EZ Lock system making accessory changes 6X faster. For use with the EZ402 mandrel.