A winding mechanism, a string trimmer head, and a method of winding line. Thehead mayinclude a body, and a spool supported by the body, a line being supportable bythe spool. Thewinding mechanism may include a crank engageable to rotate the spool to windthe line onto thespool. The trimmer head may include a bump knob engageable with the spool, andthe crankmay include a crank body engageable with the bump knob to rotate the spool.The crank mayfurther include an arm connected to the crank body and a handle connected tothe arm andengageable by a user to pivot the crank.