The Makita 12 Piece TCT Masonry Drill Bit Set is a comprehensive selection designed for efficient and precise drilling in masonry, brick, and concrete. Each bit in this set is equipped with tungsten carbide tips (TCT), ensuring superior hardness and durability for long-lasting performance. The set includes a range of sizes from 4mm to 8mm, catering to various drilling needs in construction, renovation, and installation projects. The bits are engineered to deliver clean and accurate holes with minimal effort, making them essential for tasks requiring reliable drilling performance in tough materials. Features & Benefits • Tungsten carbide tip • Cylindrical shank • Hammer drill percussion Specifications • Diameter: 4-8mm • Chuck: 10-13mm • Overall Length: 70 / 80 / 100 / 110mm Contents • 4, 5, 5.5(x2), 6(x2), 6.5(x2), 7(x2), 8(x2) mm