The 1-1/8" 3MT Exp Chk Reamer HS by Field Tool Supply is a high-speed steel tool designed for precision reaming tasks. With a diameter of 1-1/8 inches and a 3 Morse taper shank, this reamer is suitable for use in lathes and milling machines. Its HSS construction provides excellent durability and wear resistance, making it ideal 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.