The 0.4340 CHK Reamer is a high-speed steel (HSS) tool designed for precision reaming in various materials. Manufactured in the USA by Field Tool Supply, this reamer features a straight flute design that enhances chip removal and improves cutting efficiency. With a diameter of 0.4340 inches, it is ideal for creating smooth, accurate holes in metal, plastic, and wood. The reamer is constructed from durable steel, ensuring longevity and resistance to wear. It is suitable for use in both manual and CNC machining applications, making it a versatile addition to any workshop.