Field Tool Supply's 0.3985 CHK Reamer ST FL SS HS is engineered for high precision in stainless steel reaming tasks. This high-speed steel (HSS) reamer features a straight flute design, which enhances chip removal and provides a clean finish. With a diameter of 0.3985 inches, it is ideal for various machining applications. Constructed from robust stainless steel, this tool offers excellent durability and resistance to corrosion. It complies with industry standards, making it a reliable choice for professionals in metalworking and fabrication.