The 7/16 Hand Reamer SPI FL HS from Field Tool Supply is a high-speed steel reamer designed for precision hole finishing. With a diameter of 0.4375 inches, this spiral flute reamer is ideal for enlarging and smoothing holes in metal and plastic. Its high-speed steel construction ensures durability and longevity, while the spiral flute design allows for efficient chip removal. This reamer is perfect for machinists and fabricators seeking to achieve precise hole dimensions and smooth finishes, adhering to industry standards for quality and performance.