GRAFF Diamond Porcelain Ceramic Granite Review

UNIVERSAL: Our diamond drill bits are designed for working with such materials as stone, granite, marble, porcelain gres, ceramic & hard tile. Core tile drill bits are intended for both industrial use under hard working conditions and domestic use . FOR ALL DRILLS: GRAFF hex shank drill bit set has elongated shape which allows them to be used with drills and screwdrivers from various manufacturers. EASY TO USE: Diamond drill bits GRAFF are used for dry drilling of porcelain gres and tile in non-impact mode. To facilitate the work, start drilling at a 45-degree angle, and then gradually bring the drill up into upright position. Hex bits for drill have special cooling wax inside, which can cool the hex drill bit set while drilling. RECOMMENDATIONS: To avoid overheating and, as a result, drill breakdown, maximum rotation speed for the drill should not exceed 800 RPM. DIMENSIONS: Hex drill bits have diameter – 6/8/10 mm, length – 67/67/67 mm, cutting segment height – 10 mm.