Diamond Finger Drill Bit 35 mm Trepan Tile for Existing Holes Widening Shaping Tile Trimming Porcelain Ceramic Marble Granite Artificial Stone M14 Thread

Specifications Diameter 35mm Total Length 65mm Working Length 50mm Diamond Grit #45/50 M14 Thread Application Designed for enlarging shaping and sanding existing holes in tiles porcelain ceramics marble granite and artificial stone High Performance diamond grain and vacuum brazing technology provide much service life efficiency durability and strength Unique detail The hollow design with 6 holes and the interior of the matrix promote heat dissipation and chip removal Attention The diamond bit can NOT be used to drill holes directly It fits the angle grinder with M14 thread Use in dry or water easy to use Recommended speed 6000 rpm maximum speed 11000 rpm