I just thought I might add that the point of the whole operation
is to stop cutting once you've cut through the first layer of
sheetmetal. And that the layer you want to cut should be the one
which is going to be replaced. I there are more than 2 layers
welded together and the one to be replaces is in the middle
then I don't know what the best approach would be.
Also, thanks to everyone who replied. So far the results are
running pretty even so I don't know which one I'll try first.
It looks to me like one advantage the hole saw type cuttes might
have over the others is that they seem to have a longer reach.
This may be important in removing one of the pieces I'm replacing.
Mike Lee - Team Banana Racing wrote:
> >I have never heard of a spotweld cutter. How does one actually use them?
> Visualize a small (3/8" or so) hole cutter. Protruding from the center is a
> sharp, spring-loaded point; it extends past the hole cutter.
> To use it, you center punch the spot weld, and align the point of the spot
> weld cutter with the punch mark. As you bear down on the drill, the point
> retracts, and the hole saw cuts the metal. The point keeps the hole saw
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