5 x 4.2mm HSS Drill Bits — drills hole size to fit 4.0mm and 5/32' pop rivets Key benefits Accurate hole size: Each 4.2mm drill bit produces the correct pilot hole for 4.0mm (metric) and 5/32' (imperial) blind/pop rivets, reducing rework and ensuring secure rivet installation. Durable cutting performance: Made from speed steel (HSS) for reliable cutting and extended life when used for typical rivet installation tasks. Value pack: Five identical bits give spares for multiple jobs or replacements when bits wear, saving time sourcing sizes midproject. Features and attributes Quantity: 5 drill bits per pack. Diameter: 4.2mm cutting diameter — sized specifically to suit 4.0mm and 5/32' pop rivets. Material: speed steel (HSS) for good wear resistance and consistent performance. Functionality: Designed to create clean, correctly sized holes for blind rivet installations. Compatibility: Intended for use with standard drill chucks on hand drills and drill presses; suitable for common rivetcompatible materials encountered in assembly and work. Practical performance notes Produces the recommended clearance hole for 4.0mm / 5/32' blind rivets so rivets set correctly and hold reliably. HSS construction offers dependable cutting speed and reasonable life when drilling thin sheet metals and general materials commonly used with pop rivets. Pack of five reduces downtime — keep extras in the toolbox, workshop, or van. Use cases Automotive and bodywork repairs: Quickly drill consistent holes for pop rivets when fitting panels, trim, or patching sheet metal. DIY and home improvement: Install rivets for gutter brackets, metal shelving, or joining metal and plastic panels. Light fabrication and assembly: Create rivetready holes in thin sheet metal, aluminium trim, electrical enclosures, and similar materials during assembly or . Tips for results Mark and centrepunch the hole location when drilling thin metal to avoid bit walk. Clamp work securely and use steady pressure; for metal, a small amount of cutting fluid will extend bit life. bits as they dull — having five in the pack keeps spares ready and reduces project interruption. This pack of 5 x 4.2mm HSS drill bits provides a simple, reliable way to prepare holes sized to fit 4.0mm and 5/32' pop rivets, offering consistency, convenience, and the durability needed for routine rivet work.