The first handle was wood and I felt I could break it, so I made the other one out of 1 1/2 PVC and 1/4 inch aluminum flat bar. It works like ratchet with the two-speed winches.
This is good for crew without the strength to pull the lines in, lifting a person on board or sending someone up the mast. Just like a big pipe wrench. You have to know how much force to use before you break something.