A co-worker of mine once wanted a large knife blade blued, but didn't want to take the handle off. He asked me if I could do it & I told him I thought I could. After rusting I simply held it in the steam from a tea kettle spout & got a great job. I always used the boiling tank, though for all my bbls, never tried the steam, didn't know if could get so large a part hot enough. Geno's method sounds like a great idea, don't know why it never occured to me to fill them with the boiling water for heating. Incidently though "MY" spring water won't produce a decent blue, I had to get water sold for use in a steam iron.
