The Irwin 7 Piece Multi Purpose Drill Bit Set is a versatile cordless drilling solution designed for tradespeople working across multiple materials. This drill bit set eliminates the need to switch between specialist bits when drilling through different substrates, making it particularly valuable for contractors who regularly encounter mixed materials on site. Engineered specifically for cordless drills with lower RPM capabilities, these multi-purpose drill bits deliver exceptional battery efficiency. Testing has demonstrated they produce between 90-129% more holes per battery charge compared to leading competitors, significantly extending working time between charges. The four-facet ground carbide tip design reduces drilling pressure whilst improving centring accuracy, enabling precise starts across various surfaces. Each bit in this 7 piece set handles an impressive range of materials including brickwork, ceramic tiles, breeze block, wood, dry wall, gypsum board, limestone, slate, marble, eternite and plastics including reinforced varieties. This versatility proves especially useful for drilling through wood into masonry – common when fixing battens or framework to walls – as only one drill bit is required to complete the task efficiently. Features and Benefits: • Four-facet ground carbide tip for reduced drilling pressure and better centring • Delivers 90-129% more holes per battery charge than leading competitors • Drills through multiple materials without changing bits, ideal for wood-to-masonry applications • Specifically designed for cordless low RPM drilling applications Specifications: Pack Qty.: 7 Sizes: 4, 5, 6, 7, 8, 10 and 12mm