In my experience a day was a pretty good lifespan. I think I got mine
at a local PPG dealer,t I bought a set with one "bit" and several
(three?) blades. I am sure you are doing it, but having a good mark
with a center punch as a starting point tended to increase the
lifespan of the blade.
Brian
On Fri, Jun 26, 2009 at 8:58 AM, Michael Rowe<mdrowe@optonline.net> wrote:
> I bought a hole-cutter-type spot weld cutter from Eastwood for $18,
thinking that it might be better steel than the $4 Harbor Freight version. It
lasted a day. I have since seen what appears to be the same cutter for $8
elsewhere.
>
> Are the carbide end-mill-type cutters better? What brand and style gives
the best service?
>
> Michael Rowe
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