The #31 Check Reamer from Field Tool Supply is a high-speed steel (HSS) tool designed for precision reaming in stainless steel and other tough materials. This straight flute reamer features a 1/4-inch diameter and is ideal for creating smooth, accurate holes. The HSS construction ensures durability and resistance to wear, while the straight flute design allows for efficient chip removal. This reamer is perfect for applications requiring tight tolerances and is compatible with various drilling machines. Whether for industrial or hobbyist use, this tool delivers exceptional performance and reliability.