All-in-one drill, tap, deburr and countersink set designed for fast, precise hole and thread preparation in one tool. Key benefits Save time and effort: Performs drilling, thread cutting, deburring and countersinking with a single bit, reducing tool changes and workflow interruptions. Cleaner, more reliable threads: Rear cone extends past the tap to reduce overdrilling and minimize thread damage, so you get smooth, accurate results every time. Built for repeated use: Made from high-speed steel (HSS) with a protective coating for increased hardness, wear resistance and corrosion protection across many projects. Versatile sizing: Covers common metric thread pitches for a wide range of applications (M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5). Function and compatibility Functions: Drill, tap (thread cut), deburr and countersink in a single integrated tool. Suitable materials: Wood, aluminum, plastic and thin metals — appropriate for both soft and thin-sheet materials where combined operations improve speed and finish. Use cases: Appropriate for both DIY and professional work where fast, repeatable holes and threads are needed. Practical applications (examples) Furniture assembly and repairs: Quickly prepare pilot holes and threads in plywood or softwood for screw installation without switching tools. Sheet-metal and light fabrication: Create precise threaded holes in aluminum brackets and thin metal panels for fasteners and mounting points. Plastic enclosures and electronics: Drill, tap and chamfer holes in plastic housings for secure fastener installation and a clean finished appearance. Why it stands out Consolidates four operations into one tool for a more efficient workflow. Metric sizes cover common threads used in household and professional projects. HSS coated construction and a cone design that protects the thread profile deliver consistent, durable performance. Contents Bits included: M3x0.5, M4x0.7, M5x0.8, M6x1, M8x1.25, M10x1.5 Notes Intended for use where the listed materials and thread sizes are appropriate. Follow standard drilling and threading best practices for optimal results.