
9PCS CONCRETE DRILL BIT SET: 5mm. 6mm. 6mm.8mm. 8mm.10mm.12mm.14mm.16mm * 160mm; The drilling depth is 100mm. With this, you can drill all common dowel holes. (For your machine and personal safety, it is not recommended to use a three-claw hammer drill) X-SHAPED HEAD It features an X-shaped geometry with a cross-flute design for optimal disassembly and ease of use. Fully hardened drill bit with a spiral at double flute for efficient waste removal. 2-HOLE SHANK Round Handle Double Slot Impact Drill Bit Regular Drilling Tools for Concrete, Granite, Stone It provides optimum dust and debris removal with rounded spiral geometry, more efficiently. CARBIDE DRILL BITS The drill bit set is made of high quality carbide steel, durable and rustproof. The drill bit head is tungsten carbide tip is harder, tougher and more resistant to extreme loads. APPLICATION Suitable for drilling holes in concrete, ceramic tiles, stone, wood, aluminum, plastic, concrete and multi-layer materials 9pcs Masonry