Arch wrote:

Some machinists think there's a difference between making holes with the
work rotating and the bit steady (boring) and the bit rotating and the
work steady (drilling). I don't know why other than boring is better for
making large holes. Anyone?

One thing you can do by boring is support the boring bar at both ends and
move the work along it. Also, if the boring-bar doesn't have to be
balanced it can be made stiffer. You'd be doing that after you had a
through-hole into which you could insert the bar though.

I know it works from the days before plywood when I nailed #3 sheeting
on roofs, but I don't know why dulling the tip of a nail helps to make
it go straight and not split the lumber. Somebody?


Turn to Safety, Arch
Fortiter



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