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Leaving aside the numerous benefits of owning a PT other than cost saving over buying PAR (which might be planed, but almost NEVER square or straight), then this will depend a lot on the quality of the timber. I can't put a figure on it but my PT knives go a long way between full regrinds, although I do hone them periodically.IME the knots in softwood will knacker a set of blades almost as effectively as an abrasive hardwood with the added disadvantage that they tend to chip rather than simply go blunt.Mark (a very happy Jet 310 owner)
Leaving aside the numerous benefits of owning a PT other than cost saving over buying PAR (which might be planed, but almost NEVER square or straight), then this will depend a lot on the quality of the timber. I can't put a figure on it but my PT knives go a long way between full regrinds, although I do hone them periodically.
IME the knots in softwood will knacker a set of blades almost as effectively as an abrasive hardwood with the added disadvantage that they tend to chip rather than simply go blunt.
Mark (a very happy Jet 310 owner)
