This bosch expert cyl-9 multi construction drill bit is supplied as a pack of 10 bits, each with a 6mm diameter and 100mm overall length. The 6mm size is one of the most frequently used diameters on site, ideal for standard wall plugs and fixings, while the 100mm length provides confident reach across a wide variety of substrates including granite, concrete, brick, soft tile, wood and metal. Each bit is precision-engineered to deliver up to 5x more accuracy than the bosch cyl-3. Bosch centering geometry prevents slip at the start of every hole, while the fine-ground carbide tip stays sharper for longer. The optimised fluting ensures chips are cleared efficiently, keeping drilling speed high throughout the job. Features and benefits: up to 5x more precise than bosch cyl-3 for professional-grade accuracy bosch centering geometry for a slip-free start and stabilised action precision centring tip for accurate, repeatable hole placement fine-ground high-performance carbide tip for razor-sharp, durable edges optimised dust extraction channel for efficient chip removal and faster drilling cylindrical shank compatible with three-jaw drill chucks specifications: diameter: 6mm length: 100mm pack quantity: 10 contents: pack of 10