The 0.3115 CHK Reamer ST FL SS HS by Field Tool Supply is a high-speed steel reamer designed for precision reaming tasks. With a diameter of 0.3115 inches, this tool is perfect for creating smooth, accurate holes in stainless steel and other materials. Its straight flute design allows for efficient chip removal, enhancing overall performance. Constructed from durable stainless steel, this reamer is built to withstand wear and tear, making it a reliable choice for professionals. It meets industry standards for quality and performance, ensuring optimal results in machining applications.