The 0.1390 CHK Reamer ST FL SS HS from Field Tool Supply is crafted for precision reaming in stainless steel. This high-speed steel reamer features a straight flute design, which facilitates efficient chip removal and provides a clean finish. With a diameter of 0.1390 inches, it is perfect for achieving precise hole sizes in various materials. Made from durable stainless steel, this tool is resistant to wear and corrosion, meeting industry standards for quality and performance, making it suitable for both professional and home use.