10Pcs Tungsten Carbide Masonry Drill Bits, Glass Tile Drill Bits for Porcelain, Tile, Concrete, Brick Wall, Glass, Mirrors, Plastic, and Wood - 5/5/6/6/6/6/8/8/10/12mm

【Unique design】 U-shaped drain groove, spiral handle design, easy removal of chips during work, smoother drilling. Set of 10 drill bits with 5 different sizes: 2 x 5 mm, 4 x 6 mm, 2 x 8 mm, 1 x 10 mm, 1 x 12 mm to meet your different needs.

【Exquisite craftsmanship】 The surface of the concrete drill bit is processed by fine polishing, and the new electroplating process can prevent the drill bit from rusting and extend the life of the drill bit.

【Premium Quality】Our glass drill bit is made of premium YG6X carbide alloy with a reinforced head that prevents the drill bit from cracking and provides longer life. Higher hardness than ordinary drill bit, more wear-resistant.

【Anti-slip hex shank】6.35mm (1/4") hex shank that makes the electric drill tighter and not easy to slip, making it safer to use.

【Wide application】It can be used to drill glass, ceramics, tiles, mirror, flower pots, wood, porcelain, brick wall, etc. Please try to keep the drill vertical and keep the bits cool with cooling water flow; Cannot be used to drill hard tiles.