10-Piece Multi-Purpose Hex Shank Tungsten Carbide Drill Bit Set - 3-12mm for Porcelain, Ceramic Tile, Mirrors, Concrete, Brick Wall, Glass

• High Quality: The drill bit is made of professional alloy steel. High hardness, strong and durable. It has good wear resistance and can be used longer than ordinary steel drill bits. Hex shank shank allows for stable holing and quick release in power drill.
• Dimension: 10 pcs drill bit set with 7 different sizes: that is 1/8?(3mm), 5/32?(4mm), 3/16?(5mm), 1/4? (6mm), 5/16?(8mm), 3/8?(10mm), 1/2?(12mm) fit your different needs. Pointed four-corner chamfer design, easy and stable positioning, faster drilling speed, better stability, low fluctuation frequency and high efficiency.
• Application: Ideal for drilling ceramic tiles, glass, marble, and mirrors. When drilling hard materials, please use water for lubrication, good cooling can extend the service life of the drill bit. Please try to keep the drill vertical and use water or coolant for lubrication when drilling. Don't use these bits to drill hard tile.
• Tungsten Carbide Tip: The bit features a Tungsten carbide tip for extended bit efficiency and life. Professional ALLOY STEEL quality, provide smooth, accurate drilling in ceramic tile, marble, mirrors, glass, aluminium, concrete and wood.
• What you get: The package includes 10pcs 6mm glass and tile drill bits and a plastic storage box, easy to carry. For DIY and home decoration enthusiasts, it is also an essential tool for drilling glass and other hard and fragile work surfaces.

Specification: Material: Hard Alloy Size: 1/8?(3mm), 5/32?(4mm), 3/16?(5mm), 1/4? (6mm), 5/16?(8mm), 3/8?(10mm), 1/2?(12mm) Quantity: 10 pieces Package includes: 1PC 1/8?(3mm)(Dia) x 73mm(L) 1PC 5/32?(4mm)(Dia) x 74mm(L) 1PC 3/16?(5mm)(Dia) x 75mm(L) 4PC 1/4?(6mm) (Dia)x 76mm(L) 1PC 5/16?(8mm) (Dia)x 78 mm(L) 1PC 3/8?(10mm) (Dia) x 82mm(L) 1PC 1/2?(12mm) (Dia) x 95mm(L) Note: It is recommended to wear goggles and protective cover when using. Warm Notes: 1.When drilling hard material (glass, porcelain floor tile, marble or granite), please use water or oil for lubrication, which helps to extend bits service life,and also can increase drilling speed. 2.Do not use impact mode of drills or hammers when use the Multi-material Drill Bit. 3.The drilling speed of the Multi-material Drill Bit should be slow, especially in the beginning of drilling.