Lightning Bolt's favorite line of wire brushes is by Walter Surface Technologies. These critical tools used for metal-finishing work on metal surfaces without removing any base metal. They clean, polish, and de-burr.
THESE brushes come with either an orange or a blue hub.
Orange hubs signify that the brush is made with premium carbon steel wire that is oil-hardened and tempered for the longest life and maximum brushing action.
Blue hubs mean that the brush is made with 304 stainless steel wire to help prevent contamination and surface rusting of brushed stainless steel parts. these also may be used on aluminum and other non-ferrous metals.