1.High Quality & Multi-Purpose Drill Bits: It can easily penetrate various materials tile, concrete, brick wall, glass, mirrors, plastic or wood masonry, etc.Save time and use longer.2.Features: The openings of the drill bits are neat, smooth and free of broken edges will not cause shaking, easy positioning can increase the opening speed; U-type slot design with fast drilling dust removal 3 flat shanks allows the drill bit to be held firmly and stably in the electric drill.3.2 in 1 Upgrade: Combine the chip and the drill, the pointed design is more convenient to use, saving time and punching holes quickly.4.Multi-Material Drill Bits Size: 5pcs set of drill bits with 4 different sizes: 2x6mm, 1x8mm, 1x10mm, 1x12mm. ideal for drilling fixing holes in bathroom tiles or wall mirrors. Once it breaks through tile or mirror, this bit will easily withstand most masonry behind it5.Widely Used: The drill bit set is perfect for drilling all types of materials, including ceramic tile, concrete, tile, brick, wood, plastic, glass, masonry, and more.