Wisfunlly Masonry Drill Bit Set, Concrete Drill Bit with Tungsten Carbide Drill Bit, Drilling and Punching Work Kit for Ceramic Tile Concrete Brick Glass Plastic Wood (3/4/5/6/6/8/10/12mm)

[Premium Materials] Industrial-strength carbide and durable alloys prevent masonry drill bit from cracking and extend their life. Excellent wear resistance makes drilling easier.
[Easy Chip Evacuation] Masonry drill bit set with U-groove design provides low resistance, resulting in fast drilling and dust removal, faster and smoother, easier drilling and chip evacuation.
[Easy to Install and Use] This concrete drill bit set is suitable for most common drills, power drills, hand drills and bench drills, and the sturdy carbide tip drill makes it easier and safer to apply to all power tools.
[Multiple Sizes] You will get a set of 8 glass concrete drill bits in 7 different sizes, 3mm, 4mm, 5mm, 2 x 6 mm (1/4"), 8 mm (5/16"), 10 mm (3 /8"), 12 mm (1/ 2"), and comes with a portable case for easy storage and organization.
[Wide Range of Use] Suitable for most electric drills on the market today, easily drill holes on tiles, concrete, bricks, glass, ceramics, wood. To reduce cracking, use water to cool and control the speed when drilling.