The 1-3/16" 3MT Exp Chk Reamer HS by Field Tool Supply is a high-speed steel reamer designed for precision machining. With a diameter of 1-3/16 inches and a 3 Morse taper shank, this tool is perfect for use in lathes and milling machines. Its HSS construction provides excellent durability and wear resistance, making it suitable for heavy-duty applications. The reamer's design allows for efficient chip removal and smooth operation, ensuring high-quality results. This tool adheres to industry standards, making it a reliable choice for professionals in the machining and fabrication sectors.