The Irwin 3 Piece HSS Drill Bit Hex Shank Bit Set is a versatile drilling solution designed for tradespeople and contractors who need to work across multiple materials. This professional-grade set includes three essential sizes for everyday drilling tasks in wood, metal and plastic. Manufactured from high-speed steel (HSS), these drill bits deliver exceptional durability for sustained performance on site. The hexagon shank design provides improved grip within the connector, reducing slippage during operation and ensuring more reliable power transfer from your drill or impact driver. The quick change system enables faster transitions between drilling and driving applications, helping to maintain productivity when switching between different tasks. This makes the set particularly suitable for carpenters, electricians and general contractors who need to drill pilot holes before fixing. Features and Benefits: • HSS construction for long-lasting durability across multiple materials • Hexagon shank improves grip and prevents bit slippage in the chuck • Quick change system for faster bit changes between drilling and driving • Suitable for drilling wood, metal and plastic applications Contents: • Drill Bit Sizes: 4mm, 5mm and 6mm