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Old 03-30-2005, 09:34 AM
DF5152 DF5152 is offline
Join Date: Dec 2004
Location: LI,NY
Posts: 88
Default blade TPI

ok I know what it means but what are the applications? more or less teeth, which is better, and for what material?
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Old 03-30-2005, 09:52 AM
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While there may be some reference to what material you would use a particular TPI count on, I believe that it is more often the thickness of the material being cut that calls for a particular TPI. Thinner material would need a higher count TPI in order not to jerk the workpiece out of the vise if the sawtooth should bind on the edge of the work. Likewise, a thicker workpiece benefits from having a lesser TPI blade being used in order that the tooth gullets may clean the excess filings from the cut and keep a cooler metal-to-metal contact at the cutting area. There is a thread somewhere on the site that discusses this topic with much greater detail, but I haven't found it yet. I believe it was stated that for best results try to keep 3-4 sawteeth in the cut at all times and you'll have about the optimum count going for you.
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