The 0.4125 CHK Reamer ST FL SS HS from Field Tool Supply is designed for precision reaming in stainless steel applications. This high-speed steel (HSS) tool features a straight flute design, ideal for creating smooth, accurate holes. With a diameter of 0.4125 inches, it is perfect for various industrial tasks. The reamer is made from durable stainless steel, ensuring longevity and resistance to wear. It meets industry standards for quality and performance, making it suitable for professional use in machining and fabrication environments.