Feature: 1. VERSATILE NPT THREADING: The NPT tap set offers a variety of sizes to meet different pipe threading needs. Includes 5 sizes: 3/4 inch, 1/2 inch, 3/8 inch, 1/4 inch and 1/8 inch. The nominal faucet size is the size of the pipe fitting ma be screwed on. 2. CARBON STEEL CONSTRUCTION: This sturdy tap set is constructed from carbon steel and designed do clean and efficiently cut internal threads. It is an ideal choice do cleaning or re-threading clogged or damaged pipes. 3. PRECISION THREADING: NPT taps feature precision-ground teeth with a right-hand incision, square end, and 4 straight grooves. These features ensure the accuracy and efficiency of pipe threading. 4. SECURE CONNECTIONS: The NPT thread of this faucet set ensures secure connections between pipes or fittings. This makes them reliable in hydraulic, automotive, and construction applications. 5. ORGANIZATION AND PROTECTION: For convenience, the 5-piece NPT pipe taps are neatly organized in a durable plastic housing. This not only protects them from rust, but also ensures their good organization and easy access when do threading tools are needed. . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS Specifications: Item Type: NPT Tap Set Material: stal carbon Size: 3/4 inch, 1/2 inch, 3/8 inch, 1/4 inch, 1/8 inch . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS List of packages: 5 x NPT Pipe Faucet 1 x do storage box . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS . HIGH HARDNESS TAP 1/8" 1/4" 1/2" 3/8" 3/4" 5 PCS