Bosch Expert 2 608 900 005 rotary tool grinding/sanding supply Sanding disc backing pad

Bosch 125 mm hard multi-hole backing pad with M8 5/16" thread from the Expert Range is a rigid support plate engineered to hold 125 mm abrasive discs for sanding and polishing. The multi-hole layout allows dust extraction when connected to compatible sanders and vacuum systems, while the hard backing provides firm contact between the abrasive and the work surface for controlled material removal and consistent finish quality.

Advantages

The hard construction minimizes pad deformation under pressure, improving stability during heavy-duty sanding and reducing the risk of swirl marks. The multi-hole pattern aligns with common extraction systems to facilitate efficient dust removal, improving visibility and prolonging abrasive life. A standardized threaded connection ensures secure attachment to machines that accept M8 or 5/16" mounting.

Suitable for

• Sanding and smoothing wooden surfaces prior to finishing
• Paint and lacquer surface preparation and removal
• Metal deburring, rust removal and surface conditioning
• Use with orbital and random orbital sanders that accept 125 mm backing pads

Key specifications

• Backing pad diameter: 125 mm
• Hardness: rigid/hard backing for firm support
• Mounting thread type: M8 / 5/16" compatible threaded connection
• Multi-hole design for dust extraction compatibility
• Designed for use with 125 mm hook-and-loop or adhesive abrasive discs

How to use

Attach the backing pad to a compatible sander using the threaded connection and ensure it is tightened securely before operation. Fit a 125 mm abrasive disc to the pad, aligning any extraction holes where applicable, and connect the sander to a suitable dust extraction system if available. Operate the sander at the recommended speed for the abrasive and workpiece material, applying steady, even pressure and keeping the pad flat against the surface to avoid gouging.

Recommendations

For best results, check compatibility with your sander model and use abrasives matched to the material and task. Maintain moderate pressure and consistent motion to extend abrasive life and preserve surface quality. Inspect the backing pad regularly for wear or damage and replace it if the hook-and-loop surface or pad body shows deterioration.