Think about that. How often do you hit a foreign object that does not hit both sides of the blade... It is possible but less likely than the whole blade hitting that object.
Either way the blade apparently was worn out. LOL
BUT what you said would certainly cause the blade to track off center.
Leon wrote in news: snipped-for-privacy@giganews.com:
Depends on what you're using the saw for. Roughing cabinet plywood to size almost never involves hitting foreign objects of any sort. In home remodeling, though, it's pretty easy to almost miss a nail head, and dull only one side of the blade. In my experience, in that type of work, it's much more common to hit a nail with only one side of the blade than full-on.
Not trying to drag this to prove who is right... ;~)
When remodeling, removing a wall or cabinets I always used a bimetal recip saw. The blades are made to cut through nails cause you are going to cut through nails. ;~)
BUT my above thoughts were me remembering cutting through finish nails on my TS looong ago.. I do not recall the reason but it happened. I tried not to do it and fortunately there was no issue.
And having said that I was always using carbide toothed blades.
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