18Pcs Steel Wire Wheel Brushes Accessories For Dremel Rotary Tools Product Description 18 Pack - Steel Finishing Style Wire Brush Great for cleaning, deburring and general surface-finishing many items made from steel, aluminum, silver, pewter or other metals. Superb to use on corrosive resistant metals like pewter, aluminum and stainless steel to prevent "after rust". Bit diameter inch: 25mm 1/8" (3mm) arbor / shank Condition: Brand new and unused contractor bulk product (Non-Retail Package)