The Strend Pro diamond milling cutter is designed for enlarging, finishing, and chamfering existing holes in hard tiles, ceramics, stoneware, glass, and marble. It is not intended for drilling new holes. Finished holes reduce the risk of later cracking of tiles, glass, or marble. We recommend moving the cutter up and down so that its full height is used, keeping it cool. It is used for dry milling with an angle grinder (M14 thread). The cutter diameter is 0-50 mm.