John Ross wrote: > Thanks Ron, > I had been wondering how many thou. smaller for the first pass. > As I said previously, I had always used a stream of air from the compressor. > Sounds like your way is more forgiving if the speed of feed changes. > Any recommendation, on the speed of the drill press? > John Ross Beats me. Somewhere in the middle. Fast enough to keep you awake, and slow enough to not melt the bit. Eyeball it. Numbers just make it sound more important than it is in this case. Drilling a few holes in your scrap will tell you everything you need. Ron N
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