70mm Twist-Knot Wire Cup Brush — Angle Grinder, M10 / M14

70mm twist-knot wire cup brush for an angle grinder, for aggressive removal of rust, weld slag, paint and heavy residue from steel. The wires are twisted into tight knots that hit the surface hard and concentrated, making this the heavy-duty choice where a crimped brush would be too gentle — the brush to reach for on stubborn corrosion, mill scale and welding slag.

Twist-knot, for heavy work
Twist-knot brushes are the aggressive option — sturdy, fast-cutting and built for stock removal and stripping. For lighter cleaning, finishing and delicate surfaces, a crimped wire brush is the gentler choice — see our crimped wire cup brush.

Choosing a thread
Pick the thread to match your grinder's spindle. M14 is the most common on modern angle grinders; M10 x 1.5 suits many smaller and older machines. Check your spindle before ordering.

Size
70mm diameter cup

Brand
Abracs

Wire
Twist-knot steel, 0.5mm gauge

Thread
M10 x 1.5 or M14 — choose above

Maximum speed
12,500 RPM

Materials
Mild steel, and general rust, paint and slag removal

Uses
Stripping rust, mill scale and old paint, cleaning up welds and removing slag, and heavy surface preparation before coating.

Fits
Any angle grinder with the matching M10 or M14 spindle thread. Never exceed 12,500 RPM — check your grinder's rated speed.

Also known as twist knot cup brush, wire cup brush, knotted wire brush, angle grinder wire brush or rust removal brush.