The HS Boring Bar #CO A 5L from Field Tool Supply is a high-speed steel tool designed for precision boring operations. Measuring 5 inches in length, this boring bar is ideal for deep hole machining in various materials, ensuring high performance and durability. Its robust construction minimizes vibration and enhances accuracy, while the #CO A designation indicates its specialized design for optimal cutting efficiency. This tool is compatible with standard lathe machines and meets industry standards, making it an essential tool for both professional machinists and hobbyists.