What's the name of the tool for beating rapeseed?

1, the tool for beating rapeseed is called flail.

2. Flail is an agricultural tool, which consists of a long handle and a group of parallel bamboo or wood strips. Used for beating grains, wheat, beans, sesame seeds, etc. , make the seeds fall. Also known as flail. Choose a good weather for rape blossoms, harvest the mature rape blossoms and put them in the rape fields.