13187L - Weiler 3-Inch Knot Wire Cup Brush .020 Steel 5/8-11 Arbor

Eat Through Slag and Rust with the Weiler 13187

When you need to get down to bare metal fast, the Weiler 13187 3-inch Knot Wire Cup Brush is the tool you grab. This isn't your average hardware store brush that sheds wires the second it touches steel. Weiler has built this beast with heavy-duty .020" carbon steel wire twisted into tight knots, giving you the aggressive bite you need to rip through heavy slag, thick rust, and old paint without bogging down.

We know that vibration kills your hands after a long day of grinding. That's why the 13187 features a balanced solid ring construction that runs smooth and true on your angle grinder. It spins up to 14,000 RPM, letting you clean welds and prep surfaces in record time. The standard 5/8"-11 thread spins right onto your 4-1/2" or 5" grinder, locking on tight so you can put the pressure where it counts.

Perfect for pipeline work, structural fabrication, or just cleaning up a messy repair job, this knot cup brush is designed to last. The heat-treated wires resist bending and breaking, meaning you spend more time working and less time changing out worn brushes. If you're working on mild steel and need a serious cleaning tool, the Weiler 13187 is the industry standard for a reason.