The M04006 Woodruff Key is a precision component used in King packaging machinery, designed to securely lock rotating parts such as gears and pulleys onto shafts. This durable key prevents slippage and maintains alignment, ensuring smooth and efficient power transmission within tablet counting, liquid filling, cotton inserting, labelling, and capping machines. Built to withstand high-demand environments, the M04006 Woodruff Key supports reliable operation and contributes to the long-term performance and stability of King packaging equipment.