Safety and Stability The external and internal fixing plates of the angle grinder wire cup brush are made of thickened steel and feature a large hexagonal thread of 10 strengths to prevent steel wire from flying and breaking during heavy-duty tasks. Its weight ratio is carefully calculated for excellent balance and stability. High-Quality Carbon Steel Wire This angle grinder brush uses 0.020in high-strength hardened carbon steel wire, providing performance that is four times better than competing products and ensuring excellent knotting integrity. Compared to similar items, it offers a longer lifespan, safety, smooth operation, and ease of use, with the wire remaining intact and straight even under intense conditions. Increased Productivity and Grinding Efficiency The twisted wire cup brush operates at speeds of up to 12,500 RPM and is compatible with angle grinders featuring a 5/8 in 11 NC threaded shank, allowing for easy and efficient removal of severe corrosion, rust, paint, spatter, and scale, while also cleaning the edges of welds to eliminate burrs. EASY TO USE Simply attach the wire cup brush to the appropriate angle grinder and ensure you wear the necessary protective gear.