Precision-engineered for efficient material removal, these drill bits create clean and precise holes in tough surfaces. The set covers a range of sizes 5-12mm and lengths 110 160mm , catering to diverse drilling needs in concrete and masonry. Each bit is constructed from high-quality materials, ensuring an extended lifespan and durability. Organized in the innovative multi-stack case, this set ensures easy storage and accessibility for all your concrete drilling essentials. The stackable design allows for convenient transportation and compact storage, making it an ideal solution for professionals on the move. The set features a carefully curated assortment of concrete drill bits, providing a comprehensive solution for tasks involving concrete and masonry surfaces. Features & benefits durable carbide tip with 2 cutting edges drills through hard materials quickly core reinforcement adds strength and resistance when drilling deep holes with increased side loads two stage helix flute speeds up the removal of debris from the tip and speeding up drilling sds-plus connection for use with sds-plus hammer drills only for plug, anchor or clearance holes in masonry, stone, concrete and brick work specifications shank: sds-plus diameter: 5-12mm quantity: 9 contents 3x 110mm bits 5, 6, 8mm 6x 160mm bits 2x 6mm, 2x 8mm, 1x 10mm, 1x 12mm