This video is geared to jewelers but has some good info for us new guys There is some info on the GRS fixture
http://www.wonderhowto.com/how-to/video/how-to-make-and-sharpen-a-graver-5342/
http://www.wonderhowto.com/how-to/video/how-to-make-and-sharpen-a-graver-5342/
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