Did you start out with a tiny drill bit not much bigger than the
dimple you punched? I know it's to late for your repair but
may help someone in the future. I always start with a very small bit then work my way up. That small bit will stay in
the punch mark and not want to walk. 

Bill

On Aug 17, 2012, at 4:18 PM, Dave Mcneely <mcneely4@COX.NET> wrote:

> Well, I worked on the "simple" fix for the broken windshield wiper shaft stud.  Despite punching a good, centered dimple on the tip of the stud after filing it flat, I was unable to keep the drill bit from slipping sideways and so removed too much metal on one side.  Back to pulling the dash.  I may not tackle that for a while.  It hasn't rained here in Oklahoma in a couple of months.  Hey, maybe if I don't fix it, it WILL rain.