The 1-3/8 CHK REAMER ST FL from Field Tool Supply is a high-speed steel reamer designed for precision reaming in stainless steel. With a diameter of 1-3/8 inches, this tool is perfect for creating large, accurate holes in various materials. Its high-speed steel construction ensures durability and resistance to wear, making it suitable for heavy-duty applications. The straight flute design allows for efficient chip removal, enhancing the reaming process. This reamer is compatible with standard chuck systems, making it a valuable addition to any professional or DIY tool collection.