Features: Carbon steel pipes tap are designed to clean and/or rethread to damage or block pipe thread. Right hand cutting tool has a clockwise cutting function. This thread tap set is versatile and can create precise internal thread in various materials, including metal, plastic, and wood. With these pipe tap, you no longer need pre-threaded pipes or fittings; you can easily craft your thread. NPT Pipe tap come in a variety of sizes, including 1/8"-27 NPT, 1/4"-18 NPT, 3/8"-18 NPT, 1/2"-14 NPT, 3/4"-14NPT, so you can find the perfect size for your project. Equipped with special storage box. Round shanks, square end. Straight flute tools allow chips to collect in the Flute as they cut and are well suited for most applications in shallow cuts. Specifications: Material:Steel Size:1/8"-27 NPT, 1/4"-18 NPT, 3/8"-18 NPT, 1/2"-14 NPT, 3/4"-14NPT Package Includes: 5Pcs NPT Pipe Tap Set note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.