Question

what is used to rate the coarseness of a band saws blade?
o teeth per inch
o hardness of the blades teeth
o length of the blades teeth
o revolutions per minute

Explanation:

The coarseness of a band - saw blade is rated by the number of teeth per inch. Fewer teeth per inch mean a coarser blade. Hardness of teeth relates to durability, length of teeth to cutting depth, and revolutions per minute to the speed of the saw, not coarseness.

Answer:

teeth per inch