The MYWISH 2-Piece Brad Point Drill Bit Set is engineered for precision and efficiency in your woodworking projects. Each 12mm (approx. 1/2 in.) diameter bit is crafted from high carbon steel for exceptional hardness and durability, ensuring a long service life and resistance to deformation. The surface is blackened for enhanced corrosion resistance, making these bits reliable even in humid conditions. The centering brad point design guarantees accurate hole positioning and stable perforation, improving work accuracy. A spiral groove effectively discharges wood chips to prevent clogging. Featuring a 1/4 in. hexagonal shank, these bits are easy to install and remove from various power tools. Ideal for sof2od, hardwood, density board, particle board, plastic, and rubber. Not for use on metal, walls, rock, glass, or concrete.