update: Jul 2017
If you might notice there are different blade tooth styles which are designed for different cutting purposes. The blade tooth can be regular, skip, hook or alternative sets. Now let’s find down which types are best for what cutting job.
Types of tooth blades
Regular tooth blades:
this is the most common type of blade that you can find on the market. They have teeth which are proportionally distanced. This type of blade is best for common cutting-off tasks and contouring tasks. The regular tooth blades give clean, smooth cut afterward
Skip tooth blades:
skip tooth blades have a wider space between two teeth and they have 0-degree rake angle which will prevent clogging. Skip tooth blades are generally used for cutting soft materials, plastics, non-ferrous metals.
Hook tooth blades:
hook tooth blades are those with a 10-degree rake angle which allows an aggressive cut. Therefore, this type of blade is aimed at cutting thick, hard wood, metals or do resaw.
Alternative set tooth blades
these types are those with alternative sets of different teeth types which are used to deliver a fast cut but still maintain the fine cut results. Therefore, this type of blade is mostly used for joinery field and cutting irregular shape. There are 3 main types of alternative set tooth blades: raker (one left, one right, one unset), vari-raker (one left, one right) and wavy (three left, one unset, three right and repeat). Wavy set tooth blades are made for metal cutting, thin sheet mostly.