Designed for maximum efficiency, this drill bit boasts a four- offset eccentric structure that enhances drilling precision. Its sharp sawtooth edges effortlessly penetrate tough materials like tiles and concrete, making it an indispensable tool for home improvement projects. The great construction ensures use, catering to both DIY enthusiasts and professionals. Features -Color:Silver -Material:Tungsten steel alloy -Size:9.70X0.60X0.60cm/3.81X0.24X0.24in -Size:11.50X0.80X0.80cm/4.52X0.31X0.31in -Size:12.00X1.00X1.00cm/4.72X0.39X0.39in -Note: 6 mm; 8 mm; 10 mm; hole depth: 50 mm; 65 mm; 75 mm -Fast drilling performance: the unique design enhances drilling speed and smoothness for efficient work -Wear resistance: made with tungsten steel alloy, these drill bits are designed for longterm durability -Wide range of uses: great for drilling in tiles, concrete, and more, catering to various home improvement needs -Precision and stability: the sawtooth design offers precise positioning and reduces vibration during drilling -Portable and organized: includes a variety of sizes, making it easy to carry and keep organized Package list: 1 x drill bit (6mm) 1 x drill bit (8mm) 1 x drill bit (10mm)