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Perry Gienger This is a very easy tool to use. The instructions weren't very good, but I found a video and it showed exactly how to use it.
Once you figure it out it is very easy to check and file your chain using this gauge.
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Noah Webster In my area the only file guides sold at saw shops are Oregon .025 guides. This is compact and allows you to adjust the depth easily.
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Jacob Furnish Takes a little getting used to, but my goodness....Not only does it enhance the performance of the saw by matching what each individual tooth needs (which most other depth gauges don't ; they take the average of multiple teeth) but using it is actually easier and faster to file down the rakers than other depth gauges. I'm buying every type they have for all my saws. 10 / 10