1. Made of quality carbide YG6X, the rust-resistant treatment and reinforced head prevent the drill from cracking and provide longer service life.2. Four-blade design, small incision resistance and small incision resistance.The U-shaped groove drill design can effectively remove debris and improve your work efficiency.3. 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. When drilling, add water to prevent the drill bit from being damaged.