Depending on the size, and any patina which I leave alone; if it is full of rust I use a brass wire wheel and to finish it up around the wood part I use my hand held dremel tool.
Funny thing but last week just by chance a women was selling a few very rusty tools and I spied an old 48oz. Engineer hammer full of heavy rust and the handle was also somewhat beat up. The face of the hammer had met its match with something; but she only wanted two dollars so I bought it and took it home.
Turns out that hammer needed a lot of love because when I took the rust off it was a blue-point made in the USA.
