This Irwin Joran multi-material drill bit has a diameter of 8.0 mm, is 120 mm long, and has a working length of 70 mm. The Irwin multi-material drill bit is designed to drill into various materials, including brick, lightweight concrete, drywall, ceramic tiles up to hardness grade 9, sheet metal, wood, plastic, and marble. The single-flute design provides maximum space for dust extraction: offering up to a 15% speed advantage over competitors and 10% more holes per battery charge. The drill bits feature a unique sharpened tip. The hardened carbide tip has a four-sided design for excellent centering properties and perfect hole quality. Drilling tips: 1. Slow-running drill 2. High pressure 3. No hammer function. The drill bit has a round shank, making it suitable for quick-change or keyless chucks.