Kozelo 20pcs Masonry Drill Bit Set - [ 5mm ] Concrete Drill Bit Set for Brick/Glass/Plastic/Ceramic Tile Use, 1/4" Hex Shank, Carbide, High Speed Steel

• 1- Package Contents - 20pcs 5mm cutting diameter Masonry Drill Bit.
• 2- Material - Made of quality carbide YG6X with the rust-resistant treatment, ensuring its durability. The reinforced head design prevents the drill bits from cracking and extends their service life. The oxygen-nitriding treatment enhances the hardness of the bit head.
• 3- Application - 1/4 inch Hex Shank Masonry Drill Bit for most common drills, power drills, hand drills, and bench drills, easy to install and remove, more secure. It can be used for drilling walls, bricks, wood, glass, tiles, stainless steel, concrete, etc.
• 4- Durable Use - Four-blade design, small incision resistance. The U-shaped groove drill design can effectively remove debris and improve your work efficiency.
• 5- Take Notice of - When drilling in hard materials, please add water to cool the masonry drill bit, which will prevent wear on the drill bit.

APPLICATION： 1/4 inch Hex Shank Masonry Drill Bit for most common drills, power drills, hand drills, and bench drills, easy to install and remove, more secure. It can be used for drilling walls, bricks, wood, glass, tiles, stainless steel, concrete, etc. ABOUT THIS PRODUCTS: - Carbide YG6X material, rust-proof and corrosion-resistant - Four-blade design, small incision resistance - The U-shaped groove drill design can effectively remove debris and improve your work efficiency SPECIFICATION： Cutting Diameter: 5mm / 0.2-inch Shank Diameter: 6.3mm / 1/4-inch Total Length: 90mm / 3.54-inch NOTE: It's recommended to use water to avoid damaging the drilling head.