A Tec Corp

A "3 NPT HSS Tap" is a tool for cutting internal threads in a pipe, with "3" likely referring to the tap size (either 3/8′′3 / 8 double prime3/8′′ or 3′′3 double prime3′′) and "NPT" (National Pipe Taper) indicating it creates a tapered, leak-proof seal. The "HSS" stands for High-Speed Steel, the material the tap is made from, which provides durability and hardness. These taps are used for both creating new threads and repairing damaged ones in pipe fittings. 

The HSS M30×3.5mm Spiral Fluted Tap is a high-precision tool for cutting internal threads in metals, plastics, and other machinable materials. Crafted from High-Speed Steel (HSS), it provides excellent durability, heat resistance, and long-lasting performance, making it ideal for professional and DIY applications. With a 30mm diameter and 3.5mm thread pitch, it ensures accurate, clean threads for bolts and fasteners. Its spiral flute design efficiently removes chips from through-holes or blind holes, minimizing breakage and ensuring smooth operation. Perfect for automotive, industrial, and metalworking projects, this tap delivers reliability, precision, and efficiency for demanding threading tasks.

The HSS M8×1 Spiral Fluted Tap is a precision tool for cutting internal metric threads (8 mm diameter, 1 mm pitch) in metals, plastics, and other machinable materials. It is made from High‑Speed Steel (HSS), ensuring good durability, heat resistance, and reliable performance for both workshop and industrial use. The spiral‑fluted design helps efficiently evacuate chips from the hole — especially useful when working on blind holes, preventing clogging and reducing risk of tap breakage. This tap is ideal for applications in automotive, metalworking, machinery maintenance, or DIY projects where clean, accurate M8 threads are needed.

The HSS M4 × 0.7 Spiral Fluted Tap is a precision tool for cutting internal threads in metals, plastics, and other machinable materials. Constructed from High-Speed Steel (HSS), it offers excellent hardness, heat resistance, and long-lasting durability, making it suitable for professional and DIY projects. With a 4mm diameter and 0.7mm thread pitch, it produces accurate, clean threads for bolts, screws, and fasteners. Its spiral flute design efficiently removes chips from through-holes or blind holes, reducing breakage risk and ensuring smooth operation. Ideal for electronics, automotive, and general metalworking, it delivers precision, reliability, and efficiency in threading tasks.

The HSS M5 × 0.8mm Spiral Fluted Tap is a high-precision tool designed for cutting internal threads in metals, plastics, and other machinable materials. Made from High-Speed Steel (HSS), it offers excellent durability, heat resistance, and long-lasting performance, suitable for both professional and DIY applications. With a 5mm diameter and 0.8mm thread pitch, it produces accurate, clean threads for small bolts and fasteners. Its spiral flute design efficiently removes chips from through-holes or blind holes, reducing breakage and ensuring smooth operation. Ideal for electronics, automotive, and general metalworking, it delivers precision, reliability, and efficiency in threading tasks.