Used instead of a ratchet in a few contexts when it can save substantial time and effort—that is, when there is a lot of turning to be done (many fasteners), ample room to swing the handle, ample access to the fastener heads, etc.
Calgary Tool Library
http://calgarytoollibrary.org/
917 Centre Ave NEhttp://calgarytoollibrary.org/
Calgary, AB, T2E 0C6
Canada