12. May 2011 05:35
In order to choose the right saw blade for a specific application it is helpful to understand the terminology used to describe saw blade characteristics. Here are a few of the most common:
Positive Tooth Angle - The slope of the tooth along the face is slanted forward. The higher the hook angle the faster the cut, but the rougher the finish. Primarily used for ripping and crosscutting. Recommendations: Slight positive angles (5 - 10 degrees) for crosscutting. Aggresive positive angles (10 - 20 degrees) for ripping.
Negative Tooth Angle - The slope of the tooth along the face is slanted backwards. The lower the hook angle, the slower the cut, but the finer the finish. Primarily used for cutting plastics, laminates, and non-ferrous metals. Recommendation: Ideal for slide miter and radial arm saws.
Plate - The thickness of the saw body.
Kerf - The thickness of the carbide tooth. Thin-kerf blades produce less material waste and cut faster. They are a good choice for smaller underpowered saws. Thick or Full-kerf blades provide a smooth finish and greater cutting accuracy, these are a good choice for table saws.