Features: Achieve precise drilling in narrow areas with the eccentric drill bit, ensuring efficient and accurate. Crafted from hard steel material, this drill bit for effective chip removal during drilling. The 1/4inch hex shanks ensures compatibility for most standard tools, makings it easy to use. The drill bit is easy to drill ceramic tiles, glass, marble,brick, concrete, wood, plastic, etc. Suitable for DIY enthusiasts, home renovators, and woodworking professionals seeking tools for drilling in metal, wood, and other materials. The masonry drill bit is more accurate,sharps,antirust,wear resistant and drill smooth and durability. Specifications: Material:Hard Steel Diameter:Approx.6mm/0.24in,8mm/0.31in,10mm/0.39in,12mm/0.47in, Option Type:6mm Diameter Drill Bit,8mm Diameter Drill Bit,10mm Diameter Drill Bit,12mm Diameter Drill Bit,4pcs Drill Bit(6mm,8mm,10mm,12mm) 1/4inch/6.35mm hex shanks; Package Includes: 1xOblique Head Eccentric Drill Bit note: Please allow 1-2cm errors due to manual measurement,please make sure that you donot mind befores you order. Due to the differences between different monitors, the picture may not reflect the actual item color.