The preparation time is longer than the chroming. Parts have to be clean and all the old chrome gone, then buffing and polishing, then nickel plating, then chromed and polished again. Might not be that way now, but I bet it is not cost effective.
Its still the same. Except you left out a step. Steel has to be first copper plated, copper sticks to steel.
Then nickle plated, nickel sticks to copper.
Then finally chrome plated, and for tools that suffer hard wear, it would be several times in the chrome.
If you had a friendly sympathetic shop and you were good enough with polishing equipment to strip the old plate and polish yourself. And had lots of patience and willing to wait until it was convenient for the shop
You might get a break.
I put up a short article on cold bluing tools. Re-chroming is really not likely, but anyone can blue them.
It starts in the right column
www.wkfinetools.com yours Scott