Wire cup brush Polax M14 115 mm, brass bristles, for angle grinders

The Polax wire cup brush with M14 thread and 115 mm diameter is intended for use with angle grinders to remove rust, paint and scale, clean welds and prepare metal surfaces. Fitted with brass bristles, the brush offers a balance between effective material removal and reduced risk of substrate scratching or excessive sparking compared with steel-wire brushes. The cup shape provides stable contact with flat and slightly contoured surfaces, while the M14 mount fits most common grinders designed for this thread size.

Advantages

The brass bristles deliver steady abrasion suitable for light to medium cleaning tasks without aggressive cutting into the base metal. The cup design increases stability during operation and allows uniform surface contact, reducing the need for repeated passes. The M14 threaded connection ensures secure mounting on compatible angle grinders. Overall, the brush offers efficient removal of corrosion, old coatings and welding residues while limiting mechanical damage to non-ferrous or coated surfaces.

Suitable for

• Removing rust and loose paint from metal surfaces
• Cleaning weld seams and removing slag or spatter
• Surface preparation before painting or coating
• Deburring and light scale removal on ferrous and non-ferrous parts

Key specifications

• Brush diameter: 115 mm
• Mount type: M14 threaded arbor
• Bristle material: brass-plated wire
• Brush shape: cup
• Designed application: angle grinder use for surface cleaning and preparation

How to use

Mount the cup brush onto an angle grinder with an M14 threaded spindle, ensuring the tool is disconnected from power while fitting. Tighten according to the grinder manufacturer's instructions and check that the brush rotates freely without wobble. During operation, hold the grinder firmly with both hands and apply light to moderate pressure, moving the brush across the workpiece in smooth passes. Avoid forcing the brush into the surface; allow the bristles to do the work to prevent premature wear and reduce risk of substrate damage. After use, switch off the grinder and allow the brush to stop spinning completely before setting the tool down or changing accessories.

Usage recommendations

Use appropriate personal protective equipment including eye protection, gloves and respiratory protection when working with wire brushes. Select lower speeds for delicate surfaces and inspect the brush for wear or loose wires before each use. Do not use on live electrical equipment or on surfaces where wire fragments could create safety hazards.