The Woodruff Key NW 1-3/8X3/16 by Field Tool Supply is designed for high-precision applications. This key measures 1-3/8 inches in diameter and 3/16 inches in thickness, crafted from durable steel for enhanced longevity. Its precise dimensions ensure a snug fit in keyways, facilitating effective torque transfer in various mechanical systems. This key meets industry standards, making it suitable for automotive and industrial applications. Ideal for those seeking a reliable solution for their machinery, it combines strength and ease of use.