Features:* .* Made of alloy material, with high hardness and wear resistance, can be used for a long time.* Our drill bit enables precise drilling from the first u with shallow surface.* The spiral shaft also increases stock removal to leave cleanly drilled holes.* Suitable for bricks, blocks, stone, light concrete, ceramics, hardwood, glass and marble boards.* When drilling hard material (glass, porcelain floor tiles, marble or granite), use water to lubricate. Specifications:* Materials: Tungsten Carbide Steel * Quantity: 10 Pieces * Color: OrangeItem Type: Drill Bit * Shape: Triangular Handle * Diameter: 6.0mm * Length: 100mm(Approx.) (Note: The diameter is measured by the triangle part, not the thread part)Package Content: 10 * Drill BitsNote: 1. The actual colors of the item may be slightly different from the pictures shown on website due to many factors. Such as monitor brightness and light brightness.2. Please allow a Slight Error due to manual measurement.