Accessories Screwing, Drilling -Carbide Cross Spear Head Glass Marble Tile Marble Bit Bits Highlights Generic Brand Carbide Cross Spear Head Glass Marble Tile Marble Bit Bits Description: Ideal for drilling holes in glass, ceramic tiles , the brick wall or the concrete, etc. Strong toughness and wear resistance, can be installed in the hand drill, electric drill. Small cut resistance, improve bit speed Provide smooth and precise drilling in porcelain tile, marble, brick wall and glass High quality cemented carbide with reinforced head that prevents cracking and increases life life specification: Material: carbide Color: as pictures show Size: as below Diameter 4mm / 0.16inch, total length: 60mm / 2.36inch; Shank 3.4mm / 0.13 inch Package includes: 1 piece of 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.