Hello,
I need to have my table saw blade sharpened. I will be sending it to a professional service so it can be sharpened with precision and accuracy. I was wondering if a sharpened table saw blade will result in a reduced kerf width. If so how does it, if at all, affect the size of the kerf and any jigs built with the same blade previously built with zero tolerance?
Thank you
Replies
Width should not change, only the faces of the teeth are ground. The blade gets a bit smaller in diameter.
I send saw blades out for sharpening to Quinn Saw in St. Louis. Really great work and you will not detect any difference in the kerf of the blade.
than you to both of you for your comments
It is possible that the carbide inserts on the blade are tapered slightly, in which case there would be a very slight decrease in kerf (I'm thinking .001 " or less) as the top is ground off (again, they should be taking very little off the top). If you have more damage, such as pieces broken off the edge, they might have to take off more. You shouldn't notice any difference though from a kerf decrease of a thousandth or two -- this is wood we're talking about, not aircraft engine bearings.
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I use the tablesaw as a joinery machine a lot of the time. Due to this I have my blades ground to a 1/8" kerf. This allows me to use multiple jigs without a lot of setup delay. The blades have been sharpened many times over the many years and all is well.
Certainly if the face grind, if tapered, (not common in my experience[???]) you could lose a thou or so with a quality sharpening. Probably not enough to cause you concern.
I imagine I am not the only person to have had experience with an over-zealous amateur pretending to know how to sharpen and ruining a $100+ blade. Go with a sharpener who has a good run of reviews and when you find a good one, like an auto mechanic, never let them out of your sight ;-)