These models feature a rotor with built-in depth gauges, which function similarly to raker teeth on chain saws to prevent the attachments from engaging too much material at one time. This design ...

When you file down cutters, the raker usually needs to be adjusted as well. Set the depth gauge across the blade so one raker is showing. If part of the raker protrudes above the gauge ...

In this chainsaw cutter diagram, you can see that filing the beveled surface of each cutter changes its relationship to the depth gauge, A.K.A. the raker, which limits the amount of wood that the ...