Do you mean the Stihl USG Universal Chain Sharpener
or one of these Stihl raker setting tool
?
Before commenting any further I need to know your gullet width.
The gullet is measured from the front of the raker to the very back of the gullet.
BTW note how the Stihl raker setting tool comes in different sizes. Some folks that know buy a set of the 0.025", 0.030" and 0.035" and use the deeper ones with more worn cutters. Trouble is that 0.035" is still too high for cutters once they are past about half way worn.
Oregon have 0.025, 0.030, 0.040 , 0.050, 0.060 and 0.070 depth gauges setting tools (see Bailey's - Files & Accessories > Depth Gauge Tools > Oregon Raker Gauges) but the increment between the sizes of gauges of 0.010" may be a tad too much for optimising raker angles.
Lets say your gullet is at 0.30, using the 0.030 raker gives a raker angle of 5.7º, a touch wussy but otherwise OK but maybe you want to be cutting a bit more aggressively so you go to the 0.04" gauge, but this gives an angle of 7.6º which may be too much. Using the Stihl gauge of 0.035" produces and angle 6.7º which is maybe more like what you want.
So if you don't wish to mess with digital angle finders or callipers to set the rakers etc then get your self a set of the orgeon gauges up to the 0.050" and toss in a Stihl 0.035" gauge since oregon don't have one.
BobL-
the gullet width is 8mm. i just posted a photo of three teeth but didn't notice until i processed them that i should have blown off the chain. that being said, i lowered the gullets so that a 7/32 carbide cutter would produce enough hook to facilitate self feeding and used your technique and set the depth gauges to 6 degrees. i tested it on a conifer, ponderosa pine and a deciduous wood, balsam poplar, two woods i have in the fire wood pile. it cut well though i'm not completely satisfied with performance in the soft pine. that's the tool. i think it is .025" or .6mm.
it must be 0:dark thirty in perth. it's beer:30 here.
