Diatech red diamond drill bit 68mm for M14 angle grinder

PGYCSF - Diatech Red tile drill with M14 internal thread for angle grinder. Diatech tile drills are available from 6 mm diameter up to 110 mm diameter. High quality product with excellent drilling parameters. A fast and durable tool for pavers for drilling tiles, slabs and other pavements.For use only on variable speed machines. The drill life is significantly increased at low speeds. Not necessary, but cooling with water will significantly increase the tool life.Main features of diamond drillSmooth and clean work.Can be used for tiles, hard-fired tiles, ceramics, gres and granite slabs.No need to remove the drill core!M14 clamping. Use the diamond drill only for tiles.Use a drill bit suitable for the material in the masonry (brick, concrete). ?