The 0.3085 Check Reamer ST FL SS HS from Field Tool Supply is a precision tool designed for reaming holes to exact diameters. Made from high-speed steel (HSS), this straight flute reamer is ideal for use in stainless steel and other tough materials. With a diameter of 0.3085 inches, it provides a smooth finish and accurate sizing, essential for high-tolerance applications. This reamer is perfect for both industrial and DIY projects, ensuring optimal performance and durability. Its design allows for efficient chip removal, making it suitable for various machining operations.