Hi, Im tryin to do some more detailed stuff, want to cut some nice thin straight lines on a pair of gal leg spurs. What graver should I use? I currently have 120, 105 and 90 degree gravers, but cant seem to get the line im lookin for. I want to cut a deep but narrow line in the stockings. Thanks for any help. edit, I dont use a microscope, just usin a #7 visor.