What does the TPI rating refer to in cutting blades?

What does the TPI rating refer to in cutting blades?

• A. Blade length
• B. Blade thickness
• C. Number of teeth per inch on the blade
• D. Material of teeth

Answer: (C)

TPI refers to the density of the blade’s teeth—that is, how many teeth are packed into one inch of blade length. This measure directly affects how a cut proceeds: fewer teeth per inch (low TPI) means larger teeth that remove material quickly, which is helpful for fast, rough cuts like ripping through thick wood. More teeth per inch (high TPI) means smaller teeth that engage the material more often, producing a finer, smoother cut with less tear-out but at a slower cutting pace. TPI does not describe blade length, blade thickness, or the material of the teeth—the answer is the number of teeth per inch on the blade.

TPI refers to the density of the blade’s teeth—that is, how many teeth are packed into one inch of blade length. This measure directly affects how a cut proceeds: fewer teeth per inch (low TPI) means larger teeth that remove material quickly, which is helpful for fast, rough cuts like ripping through thick wood. More teeth per inch (high TPI) means smaller teeth that engage the material more often, producing a finer, smoother cut with less tear-out but at a slower cutting pace. TPI does not describe blade length, blade thickness, or the material of the teeth—the answer is the number of teeth per inch on the blade.