So, first off, I am not a machinist although I have some mechanical experience. So please go easy on me....
I need to drill out the holes on a truetrac differential carrier about 1/16" bigger. It's hardened. I've read it's anywhere from c38 to c60. A hand file does cut into it. I doubt it's c60. I tried a new cobalt drill. No luck. I've read in posts where they suggest using a quality hss reamer.
But if a cobalt drill didn't work, there's no way a hss reamer would cut into it, right? Any suggestions?
I need to drill out the holes on a truetrac differential carrier about 1/16" bigger. It's hardened. I've read it's anywhere from c38 to c60. A hand file does cut into it. I doubt it's c60. I tried a new cobalt drill. No luck. I've read in posts where they suggest using a quality hss reamer.
But if a cobalt drill didn't work, there's no way a hss reamer would cut into it, right? Any suggestions?