The TAPS LH(065) 1 1/64-8 H4 P from Field Tool Supply is a high-quality left-hand tap designed for precision threading in various materials. With a size of 1 1/64" and 8 threads per inch, this tap is ideal for creating internal threads in hard metals. Made from durable high-speed steel, it ensures longevity and reliability in demanding applications. The H4 tolerance rating guarantees a precise fit, making it suitable for both professional and DIY projects. This tap is compatible with standard tapping equipment and is perfect for use in automotive, manufacturing, and repair industries.