Originally Posted by merziac

You can make a thread chaser out of a scrap pedal spindle if you strip it out of the pedal and cut/file some slots in it, just make sure it matches the pedal you are going to use and proceed with caution if the crank is hard to chase.

I use anti seize for chasing.

You can use a small triangle file or a small cutoff wheel in a Dremel or the like to cut the slots, spindles are hard so a file is harder to do.

Clamp the spindle in a vise and carefully get the crank started squarely and have at it, one step forward, 2 steps back , don't rush and Bobs your uncle.