Features: This 5piece hand tap set delivers exceptionals durability and cutting efficiency with premium high speed steel construction, covering essential size (3mm-8mm) for versatile threading tasks. precise engineered taps feature heat treated forging for enhanced hardness toughness balance and ±0.01mm thread accuracy, ensuring seamless fastener compatibility across metalworking applications. Ideal for mechanics, enthusiasts, and maintenance technicians requiring reliability manual threading tools for workshop repairs or small scale fabrication projects. Create clean internal threads in aluminum plates, copper fittings, or iron components during automotive restoration, machinery maintenance, or home appliance fixes. The comprehensive threading tools set eliminates frequent tool changes with strategically sized taps, optimized for drilling benches and portable toolkits in industrial or garage environments. Specifications: Component: High-speed steel Tip Size:Approx.3mm/4mm/5mm/6mm/8mm Length:Approx.48/54/55/59/64mm Suitable for various application occasions such as mechanical repair, production and professional processing. Package Includes: 1set/5pcs Hand Tap note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.