Professional Grade 100mm Nylon Circle Brush with 1/4' (6mm) Hex Shank Application - For SURFACE POLISHING of metals, non-ferrous metals, steels and alloys, wood and hollow materials , stainless steel Benefit - Silicon carbide reinforced nylon wire for use on all metal, plastic and wood surfaces. It does not leave residue on work surfaces. + Material - Coarse Grit NYLON 6 SHANK Compatibility - Wire brush is suitable for cordless drills and angle grinder Nylon disc brush - aggressive for drill and screwdriver< /p> The coarse-grained nylon wire brush has a 1/4" (6.35 mm) hex shaft and is suitable for screwdrivers of all brands. Thanks to the reinforcement of the nylon by of silicon carbide, the coarse grit disc brush is ideal for working without leaving residues on materials and working materials. Note: The data is manual measurement, please allow 1-57cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.