7PCS Tile Drill Bit, Professional Bit for Porcelain Ceramic Tile, Concrete, Brick Wall, Glass, Plastic, Cement and Wood, Industrial Strength Bits Set (4 6 8 10 12mm)

First-Class Material: Carbide tipped alloy head material with stronger hardness. Carbide tipped drill bits are built for longevity and will stay sharper much longer than you're typical steel drill bit Assorted 7 Sizes: 4mm, 6mm, 6mm, 6mm, 8mm, 10mm, 12mm. 3-flats shank, these drill bits for glass perfectly fit various drilling tasks, high drilling accuracy. Rotating thread design, drilling and chip removal more smoothly U Type Slot Design: U type slot design with fast drilling dust remove, Triangular handle design, usage performance more stable High Quality Performance: Spear pointed design, this strong tungsten carbide tip drill bit is sharp, easy to locate, drilling stably, fast speed, not breaking the border, opening neat, smooth. The 3-flats shank ensures you can hold it firmly, without slip and scratching, will not damage the tile glaze Widely Used: Pointed design strong tungsten carbide tip can easily penetrate various material(porcelain ceramic tile, glass, mirrors, plastic masonry and wood). If you use the drill bits to drill concrete, brick wall and other hard materials (glass, porcelain floor tile, marble or granite), please use water for lubrication