ORIGINAL: JB COMP
I did see the corners, but I didn't think that was veary much. my files are normal and there about 8" long, I think they will work but the chrome is harder than the brass. I got a old sleeve to work on then the hyper 21 8-port before I start on any good engines.
how about these
http://item.express.ebay.com/5-Mini-...mdZExpressItem
those will work......... regular files will never cut the chrome...they need to be diamond files.