#404 USA Standard Woodruff Keys (1/8" x 0 17/32) - 10 pc (412296)
by Paulin
USA Standard Woodruff Keys are semi-circular keys that are commonly used for mechanical applications. It fits in a half-moon shaped slot in a shaft leaving the flat side of the tab exposed. They are designed not to function when excessive force is placed on the shaft. Also included in Hillman assortment #46002 / label #46001.