Gundlach 1-3/8" - 3" Diamond Countersink Bit

This Bit is used to bevel rough or chipped holes in porcelain (up to 2.5 cm), ceramic, granite, marble and glass tile. Used wet or dry, the Bit chamfers the edges creating a smooth, high-end finished hole. The bevel that is created also helps reduce the risk of cracking tiles subjected to tension around tightened plumbing fixtures and more. The FPS75 is for use with drilled hole sizes 1-3/8" (35 mm) to 3" (75 mm). Designed to be used with a standard angle grinder with a 5/8"-11 thread, without the use of an