Abrasive Fiber Disc Bosch X-LOCK 125 mm R782 G 120+ for angle grinders

Bosch X-LOCK R782 125 mm G 120+ is an abrasive fiber disc for angle grinders with the X-LOCK quick-change mounting. With a 125 mm diameter and fine G 120+ grit, the disc is designed to deliver consistent abrasion for surface preparation and fine grinding on metal and other hard substrates. The disc installs quickly on compatible X-LOCK angle grinders, providing a stable connection for deburring, rust removal and smoothing welds without the need for tools.

Advantages

The fiber construction ensures even material removal and a long service life under normal operating conditions. The fine G 120+ grit produces a smooth finish while maintaining cutting performance. X-LOCK mounting enables fast, tool-free accessory changes and reduces downtime. The disc is balanced for steady running at typical grinder speeds and is suitable for both professional and DIY applications where controlled, repeatable abrasion is required.

Suitable for (tasks / use cases)

• Deburring sharp edges on metal parts
• Removing rust and light corrosion
• Smoothing and blending weld seams
• Surface preparation before painting or coating
• Fine material removal on hardened steel and other hard substrates

Key specifications

• Diameter: 125 mm
• Abrasive grain size: G 120+ (fine)
• Mounting system: X-LOCK quick-change
• Disc type: abrasive fiber disc
• Intended use: metal and other hard materials

How to use

Fit the disc onto the X-LOCK interface of a compatible angle grinder until it clicks into place, ensuring the grinder is switched off and disconnected from power during installation. Operate the grinder at the recommended speed range for the disc and apply light, consistent pressure while moving across the workpiece to avoid gouging. Maintain a steady angle appropriate to the task: a lower angle for surface finishing and a slightly steeper angle for material removal. After use, disconnect power and inspect the disc for wear or damage before reinstalling or replacing.

Usage recommendations

Use appropriate personal protective equipment including eye protection, gloves and hearing protection. Ensure the angle grinder and accessory are rated for the operating speed. Avoid excessive side pressure and overheating; allow the disc to cool if it becomes hot. Store discs flat and dry to preserve abrasive performance.