Causes of the blade dulling
Poorly set side guides and/or rear thrust guide.
Poor tracking.
Wrong blade selection. If the blade is too narrow, it will flex more easily and
decrease the quality of the cut. The blade should also have the correct pitch
and width.
The tooth pitch is too fine (too many teeth per inch).
Certain woods will dull a steel blade very quickly, specially tropical
hardwoods [teak, koa, etc]. Other woods with a high silicon content will also
dull the blade quickly; even a cut as short as 6” will cause damage to the
blade.
On certain exotic woods the ends have been painted. This is done to control the drying.
The paint is very abrasive and will dull the blade is you cut through it. It is recommended
that you cut the painted ends off your wood.
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