General description The IRWIN HSS Pro Combination Drilling Set includes a variety of drill bits suitable for different materials, all stored in a compact carry case. It is designed for both professional and home use, offering reliable performance with proven Irwin technology. Technical specifications Number of pieces: 15 Includes 6 HSS cobalt drill bits: 2mm, 3mm, 3.5mm, 4mm, 6mm, 8mm Includes 4 masonry drill bits: 4mm, 5mm, 6mm, 8mm Includes 4 wood drill bits: 3mm, 4mm, 6mm, 8mm MPN: IW3031505 EAN: 5054905247829 Compatibility and accessories Compatible with standard drill chucks Suitable for drilling into metal, masonry, and wood Installation Insert the desired drill bit into the drill chuck Securely tighten the chuck before use Usage Select the appropriate drill bit for the material and hole size Use in a compatible drill with appropriate speed and pressure Other information