I'm hoping one of you mechanical-types can help me out. I recently had a
steel exhaust manifold flange welded, and now I'm trying to redrill the
hole for the stud. I can't find any drill bits that will cut through the
welded steel. I've tried regular high speed drill bits, titanium-coated,
cobalt, and most of them won't even touch it. Yes, I'm using cutting oil.
I've managed to get about 1/8" through, but the more I try, the less effect
I seem to have. Any ideas?
Calvin Krug
trying to rebuild my MGB
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