Crimped carbon steel bristles scrub surfaces clean, leaving only the smooth surface underneath. This handy wire cup brush is also a great tool for smoothing rough edges on metal or to grind away rust. The wires will spread eventually and won’t hold up as well as a twist knot wheel. Always use eye, face, and hand protection at a minimum. A large cup could quite quickly burn out a small grinder which is not a good outcome! Features: Removes paint, scale, rust, corrosion and weld spatter. 14mm internal thread suits standard 115mm, 180mm & 230mm grinding machines. For use with grinders. Very hard brushes Excellent results Removes paint,scale,rust,corrosion,and Weld spatter Maximum speed 8500Rpm. Compatible with 4-inch grinder/baby grinder 14mm internal threads suits standard 115mm,180mm & 230mm grinding machines. High quality Fine material Specification: Manufacturer: Steele x Plus Part Number: D2297 Product Dimensions: 8.13 x 8.13 x 7.11 cm; 453.59 Grams Item model number: D2297 Size: 14mm by 2.0 mm Item Package Quantity: 1 Warranty Description: 1-Year Warranty Item Weight: 454 g Package  Include: 1 x  Crimped wire cup brush size 14mm