3 in 1 Set Stainless Steel Wire Brushes(428 442 443) For Rotary Tool Accessory Dremel Polishing Buffing Brush 3 in 1 Set-Carbon Steel Brushes:428 442 443 Wire Brush 1/8" Shank 3/4" wheel, 3/4" cup and 1/4" end brush Cleaning and removing rust and corrosion from items Suited for cleaning flat surfaces and getting into hard-to-reach places like slots