(Teeth Per Inch) There is always one more point per inch than there are teeth per inch, so a saw with 11 PPI has 10 TPI. In these guides we will be using PPI. A higher PPI gives you a smoother finish and a lower PPI gives you a more rough finish. If a saw has lots of teeth (a high PPI) it is usually referred to as having a fine cut and can take longer to cut through wood, wheres if it has less teeth (a lower PPI) it has a medium or coarse cut and can cut through wood quicker.