....Dry Diamond Drill Bit

For the drilling of ceramic tiles and porcelain tiles. Only to be used with grinder. Operational speed between 10,000 and 14,000 r.p.m. Finish with M14 thread. RUBI® recommends A-115-N and A-125-N. The drilling guide is a system for guiding dry cutting, diamond drill bits. Vacuum fixation. Adjustable from Ø 20 to 90 mm. For use with grinder. The kit is made of foragres centring guide and Ø 20, 28, 35, 43, 50, 60 and 65 mm dry cutting diamond drill bits. With case.