I made a wooden burr puzzle the other day and noticed that the blade doesn't cut a square-bottomed groove. An exaggeration of the cut looks similar to this:
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I looked at the blade tips and sure enough they're not squared, but angled. I thought it was maybe the crappy stock blade I got with my TS, but a trip to HD showed me that all blade have tips like this.
So what gives? Do any blades cut a square-bottomed groove like this:
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Mike