I'm looking for a hand crank with a 7/8 square drive to operate my slip roll.  Any ideas about where to find one?

I ended up making ones for my slip roll and circle cutter. Used a flat bar, a broached short round bar stock and longer bolt and a handle grip that spins on the bolt

Get an old hand crank from a woodstove and weld a 12 point socket on the end.

I need to buy or make one for my old Briggs & Stratton industrial engines. They range from to 4-1/2 hp to 9 hp and all use the same crank handle. They are rope start now, but have the right hub for a crank handle. They can also use a starter/generator. I am slowing collecting parts to build a 1/2 scale model T Ford using one of the 9 hp engines with a hand crank and a starter / generator.

EvilDr235-1/2