Superior cutting ability and clean, precise results: The MSW diamond drill bit set contains five drill bits with diameters of 20, 25, 35, 55, and 68 mm, as well as a diamond cutting disc with a 115 mm diameter. Use these crown drills and the cutting disc for quick and precise work on tiles or other building materials made of porcelain stoneware, porcelain, granite, marble, ceramic, and natural stone. The high efficiency and versatility of this set allow you to effortlessly penetrate a wide variety of building materials and achieve perfect results.