Features: 100% brand new and high quality Screw Outer Diameter: 0.58cm/0.23inche. High temperature resistance, acid resistance, electrical resistance. As a friction material, it has the characteristics of not easy to break, wear resistance, and stable friction performance. Easy cleaning of MIG, TIG, and spot welds from stainless-steel surfaces. It can also be used for tight corners and intricate areas. Using a new type of aviation material-high-quality polypropylene, through air oxidation process, made in high-purity inert gas at 1000-1800 degrees Celsius. Package Includes: 3PCS/5Pcs M6 Brush Weld Cleaning and Polishing Machine Weld Cleaner Specifications: Material: Carbon Fiber Screw Outer Diameter: 0.58cm/0.23inche Net Weight: 60g/0.13lbs 100g/0.22lbs note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.