Portable Roll Groover Accessories, Roll Set for Copper no checkout positive ground for roll out welding positive ground for roll out welding of pipe and fittings—eliminates weld pinholes caused by poor grounding Makes up ground leads three ways—lug Visually striking green glow front pocket draws attention to earplugs Dispenser features a removable inner slanted shelf to direct plugs toward pocket (shelf can be removed for greater storage capacity) Comfortably holds a standard box of 200 disposable ear plugs and can be wall or table mounted All die heads are through head oiling Choose from a variety of options Dies sold separately Not for use with stainless steel