QWORK® 5 Pcs Multi-Material Drill Bits Set 6mm,8mm,10mm, 12mm,for Tile,Concrete, Brick, Glass, Plastic and Wood Tungsten Carbide Tip Best for Wall Mirror Ceramic Tile on Concrete Brick

1) One drill bit replaces two drill bits (1x glass & tile drill bit + 1x Mansonry drill bit), ideal for drilling fastner holes in bathroom tiles, or wall mirrors. Once it drills through the tile or mirror this drill bit will cope easily with any masonry behind it 2) Spear pointed design strong tungsten carbide tip can easily penetrate various material(tile, concrete, brick, glass, plastic and wood,etc) and reduces breakout 3) 5 Pcs drill bit set with 4 different sizes: 2x 6mm(1/4"), 1x 8mm(5/16"), 1x 10mm(3/8"), 1x 12mm(1/2") 4) U type slot design with fast drilling dust remove, 3-flats shank allows drill bit to be held tightly and stably in power drill. 5) When drilling hard material (glass, porcelain floor tile, marble or granite), please use water for lubrication