Feature: 1. Including Tools: This kit includes 17 pieces taps, 17 pieces dies, a tap wrench (M3‑12mm), a round die wrench (M25), a thread gauge (thread template), a screwdriver, and a T shaped tap wrench. 2. Accurate Size: These taps and dies are designed strictly in accordance with imperial specifications, with standard sizes and clear threads to ensure accurate and convenient operation. 3. High Carbon Steel: These taps and dies are made of excellent high carbon steel material, with high strength, good wear resistance, long term use without deformation, and has a long service life. 4. Multifunctional Use: With a variety of tools and specifications, this kit is suitable for various tapping operations, convenient for repairing and making threaded parts, and has strong practicality. 5. With Storage Box: All tools are stored in a portable storage box, and the perfect slot design ensures that the tools are securely fixed, preventing loss and clutter, making it easy to store and carry. Specification: Item Type: Tap and Die Set Material: High Carbon Steel Specification: British Fine Thread Die: 4NC40, 6NC32, 8NC32, 10NC24, 10NC32, 12NC24, 1/4NC20, 1/4NC28, 5/16NC18, 5/16NC24, 3/8NC16, 3/8NC24, 7/16NC14, 7/16NC20, 1/2NC13, 1/2NC20, 1/8NPT27 Tap: 4NC40, 6NC32, 8NC32, 10NC24, 10NC32, 12NC24, 1/4NC20, 1/4NC28, 5/16NC18, 5/16NC24, 3/8NC16, 3/8NC24, 7/16NC14, 7/16NC20, 1/2NC13, 1/2NC20, 1/8NPT27 1 Tap Wrench 1/2 (M3-12mm) 1 Round Die Wrench 1 (M25) 1 T Shaped Tap Wrench 1 Thread Gauge (thread specification measurement) 1 Screwdriver. Package List: 17 x Taps 17 x Dies 1 x Tap Wrench 1 x Die Wrench 1 x Thread Gauge 1 x Screwdriver 1 x T Shaped Wrench 1 x Storage Box