i've had and used one of these from stewmac for the past year or so. I really like it-works easy with any instrument i've used it on(guitar/banjo/mandolin). it has really helped me be consistent and accurate,and it works fast.
in my continual effort to learn and improve, i figure some of you have some neat ways to do this and i'd be appreciative to hear about them.
https://www.stewmac.com/Luthier_Tool...Nut_Guard.html
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