The Greenlee 52096561 Woodruff Key #213 measures .125X.375 and is essential for securing rotating components in machinery. Made from high-strength materials, this key provides reliable performance and durability in various applications. Its precise dimensions ensure a perfect fit in keyways, preventing slippage and ensuring smooth operation. This Woodruff key is ideal for use in motors, gearboxes, and other mechanical systems, meeting industry standards for quality and performance. It is a vital component for maintaining the efficiency and reliability of machinery.