a gentleman asked me to polish his dads home made knife. i wish i took before pics but i got ahead of myself lol.it was very rough i did not want to do the handle it was a 2 piece with some sort of epoxy holding it together. age unknown. 15-5 ph stainless used on commercial air craft.it has a grain in it. and would only polish so much without burnishing it. pics dont do it Justice.