Abrasives & Brushes - Brand Generic - 50mm Diamond Saw Tile Glass Slate Porcelain Slate Marble Drill Bit 50mm Diamond Saw Description: Mainly used for drilling porcelain tile, ceramic tile, marble, granite, rebar concrete and other hard materials. Gold painted on the body of this bit to prevent rusting. Opening neat, smooth, no broken edges, no shaking phenomenon, chip easily Small incision resistance, stable drilling function, fast speed, no boundary breaking. Suitable for drilling faucet mounting holes in stone countertops, plumbing lines in showers and vanities. Specification: Method of use: use wet or dry To prolong its service life, must use with water for cooling and lubrication. Hole saw can be used with bench drill, hand electric drill. When using a hand electric drill, start slowly, 45 degree angle, go vertical after making an initial mark. Material: Diamond Color: gold Size: approx. 6-100mm / 0.24-3.94inch Package Include: 1 Piece Drill Bit Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures . Please allow slight dimension difference due to different manual measurement.