10PC 5/16" Green Concrete Drill Bit Set, Mgtgbao 8mm Masonry Drill Bits for Tile,Brick, Plastic and Wood,Tungsten Carbide Tip Best for Wall Mirror and

10PC 5/16" Green Concrete Drill Bit Set, Mgtgbao 8mm Masonry Drill Bits for Tile,Brick, Plastic and Wood,Tungsten Carbide Tip Best for Wall Mirror and

【HIGH EFFICIENCY & DURABLE MASONRY BIT】The spiral shank increase cutting speed and prevents slipping. It also removes flakes and debris easily, leaving you a clean and smooth hole. The drill bits are durable and will stay sharper 【ANTI-RUST TREATMENT】The surface is coated with electrophoretic paint to prevent the drill bit from rusting, and the traditional plating process is abandoned, and the product quality is higher. The surface of the drill bit is polished and the surface is smooth. Special bevel connection is designed for reducing resistance. Hex shank is designed for preventing slipping. 【PRECISE & SMOOTH HOLE】Excellent for clean and accurate hole drilling in concrete and ceramic tile and so on. Fine drill edge and the hole is smooth and complete, without leaving burrs. 【10PC 5/16 inch 8MM MULTIFUNCTIONL DRILL BIT SET】 - Carbide Tipped Drill Bits Are Built For Longevity and Will Stay Sharper Much Longer Than You're Typical Steel Drill Bit. 【WILDLY APPLICATION】Easily drills through Concrete, Cement, Brick, Wood, Plastic and much more. A must-have tool for general home usage and industry projects. These drill bits can be used in charging drill, hand drill, bench drill etc. But NOT fit for impact drills; What makes Mgtgbao products unique, why would you choose Mgtgbao drill bit set ?
NEW ENVIRONMENTALLY FRIENDLY PROCESS: We have abandoned the traditional spray process and adopted a new electroplating process to treat the surface of the drill bit and reduce the rust of the drill bit.
NEW MATERIALS: We refuse to use second-hand recycled metals, use new hard alloys, and high-quality hard alloys to provide better products to our customers.
GREAT DESIGN: U-shaped design allows the drill bit to be smoother during use. Triangular drill bit positioning drilling will be more accurate.
SINCERE SERVICE: If you encounter any problems with the product, you can contact our customer service team, we will reply and give a solution within 6 hours.

Feature:
Material: cemented carbide
Color: Black
Shank:1/4 hex shank
Cutter head type: triangular
Surface treatment: new environmentally friendly plating process
Size：8mm

Package list：
10pcs with 8mm (5/16” ) Drill Diameter & 6.35 mm shank Diameter
1pc plastic box

Attention：
When drilling hard material (glass, porcelain floor tile, marble or granite), please using water for lubrication.