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I have the 40 tooth WWII. It was definitely a mistake. I am utterly
amazed at how much faster the
thin kerf 24T freud blade cuts with zero burn.
After 30 years of doing this seriousely, I'll keep my 40 thooth for 99% of
It might be my imagination, but I think the easier cutting contributes
to a straighter cut. If you have to
use more force, the whole blade/wood geometry gets strained which can
cause a bad cut. I've noticed this
doing a miter cut on wood hand held to the miter gauge (as opposed to
clamped to a sled).
For a typical cut the think kerf may in deed yield good results, probably
not better than a regular kerf blade, all things being equal. Start making
compound miter cuts through 2" thick stock and you will probably see the
advantage of regular kerf vs. thin.