The Blue Demon StaySharp Eco Tungsten Grinder is a convenient, portable, economical tungsten electrode sharpening solution. The tool itself features a hard anodized 60-65 Rockwell aluminum construction with integrated angle slots for 1/16", 3/32", and 1/8" tungsten. It fits on any rotary tool with a collar screw pitch of 3/4-12. The kit includes the grinder head and a pack of 10 diamond-coated grinding discs. Pick up yours today to experience this revolutionary American-made tool for yourself!