Angle grinder backing pad Rotoszlif PF 125 mm with M14 thread (for 125 mm discs)

Backing pad Rotoszlif PF 125 mm with M14 thread is a support accessory designed for use with 125 mm abrasive and polishing discs. It fits angle grinders equipped with an M14 spindle and provides a firm, even surface for sanding, grinding and polishing operations. The pad is intended to stabilise discs, reduce vibration and ensure more consistent contact with the workpiece during surface preparation of metal, wood and painted surfaces.

Advantages

The Rotoszlif PF 125 mm backing pad offers a balanced construction that helps maintain disc alignment and reduces wobble at operating speed. Its mounting thread ensures secure attachment to compatible grinders, while the pad surface is shaped to support both rigid and semi-flexible discs. The design minimises abrasive chatter and contributes to even material removal and a uniform finish across the working area.

Suitable for

• Sanding and smoothing metal surfaces before painting or welding
• Removing rust, scale and old coatings from metal
• Sanding wooden surfaces and preparing them for finishing
• Polishing painted and varnished surfaces using polishing pads and discs
• General abrasive or polishing tasks that require a 125 mm backing pad

Key specifications

• Pad diameter: 125 mm suitable for 125 mm discs
• Mounting thread: M14 compatible with standard grinder spindles
• Usage: supports abrasive and polishing discs including fibre, cloth and foam variants
• Mounting type: threaded attachment for secure fit on grinders
• Construction: rigid backing with a slightly compliant surface to accommodate disc thickness variations

How to use

Confirm that your angle grinder uses an M14 spindle and that the chosen disc is rated for the grinder's speed. Screw the backing pad onto the grinder spindle by hand until snug, then tighten according to the grinder manufacturer's instructions, using the proper wrench if required. Attach the selected 125 mm disc to the pad, ensuring proper centring and secure adhesion if using hook-and-loop or adhesive-backed discs. Operate the grinder at the recommended speed, applying even pressure and keeping the pad flat against the workpiece to achieve consistent results.

Usage recommendations

For safe and effective use, always wear appropriate personal protective equipment such as safety glasses, hearing protection and a dust mask. Use discs rated for the grinder's maximum RPM and replace the backing pad if it shows significant wear, cracking or loss of rigidity. Avoid excessive lateral force and inspect the pad and disc before each session to prevent imbalance and vibration.