Four Sides Cutting Sharp Wear-resistant Carbide Bit Cross Hex Drill for Glass Ceramic Tile Ceramic Concrete Drilling Brand new and high quality_x000D_ Material: Cemented Carbide_x000D_ Colour: Silver_x000D_ Product Size: 3/4/5/6/8/10/12mm_x000D_ Shank type: Hex_x000D_ Main Features:_x000D_ 1. High-Quality Materials:It is made of high quality YG6X alloy as raw material. The process of oxynitriding of the cutter head strengthen the drill hardness._x000D_ 2. Surface Electrophoretic Paint Process:Full-grinding and anti-rust treatment, clean and sharp without burrs .The drill bit is more wear-resistant and more durable ._x000D_ 3. Fully automated polishing: Polished CNC is fully automated, each one is unified._x000D_ 4.Unique Cross Angle Design:Small incision resistance,feature drilling stably, fast speed, not breaking the border. Opening neat, smooth, no broken edges, no tremor phenomenon, chip easily._x000D_ 5. Wide Usage:Professional glass and tile drill bits provide smooth and accurate drilling in ceramic tiles, marble, thin iron plate, mirrors and glass.When drilling continuously, you need to add water to cool the drill bit to avoid burning. For example: tile, glass tile, glass, marble, etc_x000D_ 6. Different Sizes:Suitable for your different needs.It Can be installed in the general electric hand drill, bench drill._x000D_ _x000D_ Package include1*Drill Bit_x000D_ _x000D_ Notes:_x000D_ 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness._x000D_ 2. Please allow slight manual measurement deviation for the data. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_