Product features and benefits Complete 6-piece set: six saw-type drill bits covering sizes from 3 mm to 8 mm, including one 5 mm bit for targeted needs. Durable HSS construction: made from high-speed steel (HSS) for reliable wear resistance and consistent hole grooving across repeated use. Quick-change hex shank: hex shank design enables fast bit swaps and broad compatibility with quick-change chucks and standard drill drivers. Multi-material performance: effective on wood, plastic, and metal — one set for a range of workshop and jobsite tasks. Precision results: saw-style cutting edges produce clean, controlled holes for accurate joinery and fitting. Why you need this set Saves time and reduces tool changes by covering common hole sizes in a compact set. HSS material and saw-style geometry deliver cleaner cuts and longer life than standard bits when working with mixed materials. Quick-change hex shank improves workflow by letting you swap bits quickly and securely. Typical applications Carpentry and furniture making: drilling precise dowel holes, hardware mounting holes, and clean openings for fittings. Electrical and installation work: creating neat pass-through holes in panels or junction boxes for cables and conduit. General workshop and DIY: cutting holes in plastic enclosures, soft metals, and a variety of wood types for repair or fabrication projects. What’s included 6 saw drill bits, sizes ranging from 3 mm to 8 mm (includes one 5 mm bit). HSS material, quick-change hex shank. Suitable for carpenters, woodworkers, tradespeople, and hobbyists who need a reliable, versatile set of drill bits for clean, accurate holes in wood, plastic, and metal.