The TAP SP-R UF(16)1/4-20 H3P3F from Field Tool Supply Co is a specialized tap designed for creating internal threads in softer materials. With a size of 1/4-20, this tap is perfect for applications requiring precision and reliability. The H3P3F designation indicates its specific threading characteristics, ensuring compatibility with various fasteners. Made from high-quality materials, this tap offers durability and longevity, making it an essential tool for machinists and DIY enthusiasts alike. Enhance your threading capabilities with this reliable tap.