The regular tooth blades have reasonable spaced teeth and are best for both general-purpose cutting and contour sawing. These regular blades are best for cutting thin materials, giving them a smooth finish.
The skip tooth blade’ teeth are wide spaced at a 0 degree rake angle, that helps prevents clogging when you are cutting soft wood, plastics, and non-ferrous materials.
And as for the hook tooth blades, they have deeper gullets, this means that their teeth are large, and with a positive rake angle of 10 degrees. This helps the blade aggressively feed into the material. What you get is a faster cutting rate. The hook tooth blades are mostly used for long cuts in thicker woods, plastic, metal, and hardwood.
Variable Pitch blades have varying sets of different sized teeth that give a fast cut with a fine finish, great for joinery and for cutting curves.
If you want to see a blade set, all you need to do is to look down on the teeth.
A raker tooth set has one tooth going to the left, one to the right, followed closely by a straight, or unset, tooth, that is called a raker.
An alternate tooth set has one tooth going left, one going right, then left, right, etc. There is no raker tooth. The double alternate plus raker comes with an unset raker tooth following two left-right combinations.
A wavy tooth set has groups of teeth set left and right, separated by unset raker teeth. Wavy set blades are created primarily with the small teeth recommended for cutting thinner metal sections, tubes, pipes, thin sheets, etc.
Choosing a Blade Set
Choosing a suitable set supplies a balance between sawdust and air in the area between the body of the saw blade and the material it is cutting. A great appropriate set is approximately 80/20, with 80% sawdust and 20% air being ejected. The sawdust ought to be warm to the touch, and not hot or cold.
Too much-set results in an excessive amount of air and insufficient sawdust and can leave tooth marks.
An inadequate set restricts airflow and limits the blade’s capability to pull sawdust from the cut. This creates hot, packed sawdust and results in short cutting times and premature blade breakage. This is basically the worst thing you can do for the bandsaw blade.
Excessively under set bands will cut in a wavy motion.
Hi, I'm Aaron Cardwell. I did not think of myself as an auto enthusiast until I bought my first car and discover how much fun driving is. Also, using vehicles or any means of transportation is a way of life. I know how greatly it impacts our daily lives.