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Dan Nettles
Dan Nettles
14 days ago

i am an arborist. these chain saw sharpeners file the metal downwards which is the opposite of efficient in shaving wood at 4000 rpms, the hand files morph the metal upwards leaving the tooth ready too make a nice micro wood shaving. when a chain starts “dusting” it technically works, but it is hard on your saws motor, and produces more heat and friction. i send my chains off too be oiled, sharpened, and the pusher portion of the tooth lowered so it cuts like butter, but keep a set of hand files in the field too touch up a fussy chain.