The 0.3955 CHK REAMER ST FL SS HS from Field Tool Supply is a high-speed steel reamer designed for precision finishing of holes. With a diameter of 0.3955 inches, this straight flute reamer is ideal for achieving smooth, accurate hole sizes in various materials. Constructed from stainless steel, it offers excellent corrosion resistance and durability. This reamer is perfect for applications requiring tight tolerances and is compatible with standard reaming tools. It meets industry standards for quality and performance, making it a reliable choice for professionals.