The 1-5/16 4MT CHK REAMER RHS HS from Field Tool Supply is a high-speed reamer designed for precision machining. This reamer features a 1-5/16 inch diameter and a 4 Morse taper shank, making it compatible with a variety of machines. Constructed from high-speed steel, it offers excellent durability and cutting performance, ensuring clean and accurate holes. Ideal for use in metalworking applications, this reamer is perfect for enlarging existing holes or achieving precise tolerances. Its robust design allows for efficient cutting, making it a valuable addition to any machining toolkit.