ITEM NAME:Hex Shank Diamond Drill Bits Dia 14mm Drilling Core Bit Description: Brand New & High Quality, Easy to use, Good Performance and Long life. Coarse grit diamond, best on marble, granite and tile. Excellent for making clean and accurate hole on granite, marble, rock, gemstone, shells, tile and glass etc. Water or other cooling agent is recommended for longer life of the bit. Diamond coating maximizes performance and retains a sharper cutting edge than traditional car.1 Piece Diamond Drill Bit. Coarse grit diamond, best on marble, granite and tile. Material: Diamond. Excellent for making clean and accurate hole on granite, marble, rock, gemstone, shells, tile and glass etc.
