New Condition. Hardly used. Precise Diamond Ground Taper: deliver quick and consistent adjustable grind angle from 15° -to- 45° for snappy arc starts, better puddle control and improved weld quality. The double-sided diamond wheel easily grinds tungsten electrode sizes, 1/16", 3/32" and 1/8" (1.0mm, 1.6mm, 2.4mm and 3.2mm). Manufactured by Arc-Zone.