ITEM NAME:20x Stainless Steel Wire Wheel Brushes For Die Grinder Rotary Tools New G7C8 20x Stainless Steel Wire Wheel Brushes For Die Grinder Rotary Tools New G7C8 Mainly suitable for deburring, dust, rust, remove the oxide layer, coating, can improve the quality of metal stone, is an important part of the machining process. Ideal for Removing Rust/Corrosions from Any Metal Surfaces (e.g.: Steel, Aluminum, Zinc alloy, Brass, Copper, etc.), especially Precious metals. Perfect Accessories for Jewelers, Locksmiths, Gunsmith, Technicians, Coin Collectors, Archeologist, Students ect. Use: gold and silver jewelery, clocks, glasses and other metal surface polishing. Material: Stainless steel Mandrel Length: 3mm Head diameter: Approx. 25mm Total length: Approx. 40mm Package include:20 x Stainless steel wire wheels brushes Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.