The TAP LH (088) 1 3/8- 6 GH4 B from Field Tool Supply is a premium left-hand tap designed for precision threading in various materials. With a thread size of 1 3/8-6, this tool is ideal for creating internal threads in metal and other hard materials. The GH4 designation indicates a specific geometry that enhances chip removal and reduces friction during use. Made from durable high-speed steel, this tap ensures longevity and reliability in demanding applications. It is suitable for use in industrial settings and complies with ANSI standards, making it a trusted choice for professionals.