Angle grinder wire cup brush GEKO G85309 — steel bristles, 6.3×16×22.2 mm arbor fit for Celma grinders

Cup wire brush GEKO G85309 with steel bristles is designed for attachment to angle grinders for surface cleaning, rust and paint removal, deburring and metal preparation. The brush accepts a 6.3×16×22.2 mm arbor fit compatible with Celma grinders and other grinders using the same spindle dimensions. Constructed for contact with metal surfaces, this cup brush provides aggressive brushing action while maintaining balance during rotation.

Advantages

The steel bristles deliver high abrasion resistance and effective removal of corrosion, scale, old coatings and welding slag. The cup shape provides stable contact with flat and contoured surfaces, improving material removal efficiency. The arbor fit ensures a secure mount on compatible grinder spindles, reducing vibration and improving operator control. The design is suitable for repeated professional or DIY use where durable brushing performance is required.

Suitable for

• Cleaning rust and scale from metal structures
• Removing paint, primer and old coatings
• Deburring and edge preparation on steel parts
• Surface preparation before welding or painting
• General metal surface cleaning and finishing

Key specifications

• Brush type: cup wire brush with steel bristles
• Bristle material: steel
• Arbor fit dimensions: 6.3×16×22.2 mm
• Designed for use with angle grinders compatible with the specified arbor fit
• Application: rust removal, paint stripping, deburring, surface preparation

How to use

Mount the cup wire brush on an angle grinder with the correct arbor fit, ensuring the tool is disconnected from power during installation. Tighten the mounting hardware according to the grinder manufacturer's instructions. Operate the grinder at the recommended speed range for the brush and maintain steady, controlled pressure; avoid excessive force which can damage bristles or the workpiece. Work with consistent overlapping passes to achieve even cleaning and avoid concentrating on a single spot for prolonged periods. After use, inspect the brush for wear or damaged bristles and replace when performance diminishes or safety is compromised.

Usage recommendations

Use appropriate personal protective equipment including eye protection, gloves and hearing protection. Ensure the workpiece is securely clamped and keep bystanders clear. Choose the brush diameter and grinder speed suitable for the task to balance material removal rate and surface finish.