6PCS HSS Drill Bit Set with Anti-Rust Coating, Combination Drill and Tap Hex Shank Drill Bit Set M3–M10, Dual-Purpose Hex Drill Bits for Drilling and Threading, Metal Drill Bits for Steel, Alloy

• Durable HSS Construction with Enhanced Anti-Rust Coating This premium HSS Drill Bit Set is engineered from high-speed steel with an advanced corrosion-resistant coating, ensuring long-lasting sharpness and improved wear resistance. The strong build delivers dependable drilling and tapping performance, making it for precision tasks on steel, alloys, aluminium and other metals.
• Drill and Tap in One Step for Faster, Cleaner Results Each bit in this hex drill bit set combines drilling and threading into one smooth motion, significantly reducing working time. Designed for efficiency in metal fabrication, automotive repair and maintenance tasks, these hex drill bits create accurate holes and clean threads, helping achieve consistent and professional-grade results.
• Spiral Flute Design for Smooth Chip Removal and Clean Threads The optimised spiral flute structure ensures effective chip evacuation, preventing clogging during deep tapping. This makes the hex shank drill bit set for producing stable, precise threads in both blind and through holes, maintaining thread quality while reducing heat build-up and extending bit life.
• Universal 1/4" Hex Shank for Secure and Versatile Use Built with a 1/4" hex shank compatible with most hand drills, drill presses and electric drivers, this set offers a secure grip and reduced slippage under torque. The versatile design improves handling and stability, making these metal drill bits for steel reliable tools for both workshop professionals and DIY users.
• Complete Metric Solution with Six Common Sizes for Everyday Tasks Covering M3, M4, M5, M6, M8 and M10, this comprehensive hex shank drill bit set offers the essential sizes required for mechanical repairs, threading tasks and custom metalwork. These dual-purpose metal drill bits for steel deliver consistent performance across a wide range of industrial, automotive and home applications.

Unlock efficient and precise metalworking with this professional 6PCS HSS Drill Bit Set, designed to combine drilling and tapping into one seamless operation. Whether you work in automotive repair, fabrication, machinery maintenance or DIY metal projects, this set offers a fast and reliable solution for creating accurate threaded holes in steel, aluminium, iron and various alloys. Engineered for durability and performance, each bit delivers consistent, clean results on demanding materials. Constructed from high-speed steel, this HSS Drill Bit Set provides exceptional hardness and edge retention. The cutting edges stay sharp even after repeated use on tough metals, reducing the amount of force required and helping you maintain efficient workflow. The added anti-rust coating further enhances resistance against corrosion, extending the lifespan of the bits while ensuring smoother cutting performance. A key feature of this hex drill bit set is its dual-purpose drill-and-tap design. Each bit begins by drilling a pilot hole and then transitions directly into cutting threads, eliminating the need for tool changes and reducing overall working time. This capability makes the set ideal for repairs, modifications and production tasks where precision and speed are essential. The clean, accurate threads these hex drill bits produce ensure strong connections for bolts, screws and industrial fasteners. The bits also feature an optimised spiral flute structure, designed for efficient chip removal and reduced clogging. This helps maintain smooth cutting action in deep or narrow spaces, producing high-quality threads in both blind holes and through holes. The improved chip flow reduces heat build-up, minimising wear and making the bits more reliable for repeated heavy-duty jobs. Equipped with a universal 1/4" hex shank, this hex shank drill bit set is compatible with most electric drills, impact drivers and drill presses. The secure hex connection prevents slippage, especially when working under higher torque, and ensures better control and stability. This makes the bits efficient tools for constructors, engineers, mechanics and enthusiastic DIY users seeking reliable metal drill bits for steel and hard alloys. The set includes six of the most commonly used metric sizes—M3, M4, M5, M6, M8 and M10—making it suitable for a wide variety of threading applications. These popular dimensions cover everything from machine repairs and structural assembly to custom metal fabrication and equipment maintenance. Whether you are restoring a vehicle, assembling industrial hardware or crafting metal components, the versatility of these bits ensures you always have the correct size at hand. From workshop professionals to home users, this hex drill bit set offers outstanding convenience, durability and precision. Its combination of drilling, threading and stable performance makes it an essential tool for any environment where metalworking accuracy is required. Designed to withstand heavy use on stubborn materials like steel and iron, this set provides reliable strength and consistent results, project after project.