Polishing Brushes
Abrasive Brush (538): Dremel's strongest and longest lasting brush. Extra-thick nylon bristles are coated with an abrasive grit for material removal on the toughest jobs. Use for deburring metal or wood and for removing rust and paint. Do not run brush in excess of 20,000 RPMs.
Bristle Brushes (403, 404, 405): Use for light deburring, cleaning, polishing of silverware, jewelry and other precious metals; can be used with polishing compound (#421).
Carbon Steel Brushes (428, 442, 443): Versatile brush for removing rust and corrosion, polish metal surfaces. Deburr and blend surface junctures, clean electrical components.
Stainless Steel Brushes (530, 531, 532): Stainless steel brushes do not cause "after-rust" when used on corrosive-resistant materials like pewter, aluminum and stainless steel.
Brass Brushes (535, 536, 537) Brass brushes are non-sparking and softer than steel. They will not scratch soft metals like gold, copper, or brass.
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Abrasive Brush (538) - Do not run brush in excess of 20,000 RPMs
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Remaining Brushes - Do not run brushes in excess of 15,000 RPMs