Final answer:
The coarseness of a power band saw blade is determined by the number of teeth per inch (TPI) on the blade.
Step-by-step explanation:
The coarseness of a power band saw blade is determined by the number of teeth per inch (TPI) on the blade. The higher the TPI, the finer the cut will be. This is because more teeth allow for a smoother and cleaner cut.
For example, a blade with a TPI of 6 will have larger gaps between the teeth, resulting in a coarser cut. On the other hand, a blade with a TPI of 14 will have smaller gaps between the teeth, resulting in a finer cut.
It's important to choose the right blade for the specific material you are cutting. For softer materials, a blade with a lower TPI is preferred, while for harder materials, a blade with a higher TPI is recommended.