Brand new Shape: T-type Shank diameter: 3mm Brush diameter: about 25mm Handle material: stainless steel Color: as picture shows Quantity: 6pcs per set Suitable for removing burrs, rust, dust, remove the oxide layer, coating, can improve the metal, stone and other materials quality. Widely used in micro-electronic devices, jewelry and stamp production and other industries. It is small area of metal and nonmetal materials rust deburring, surface polish and so on efficient polishing tool.