An accessory designed for use on angle grinders with a standard M14 thread, giving you a secure base for 115 mm sanding or grinding discs — the Sonnenflex Backing Pad 115 mm x M14. It serves as the interface between the rotating disc and the grinder, ensuring stable contact and even pressure — essential for efficient, controlled grinding or sanding. Because it’s built to match a common disc size (115 mm), it works with many standard fibre or resin‑based abrasive discs — ideal for smoothing, shaping, or finishing metal, wood, or other materials. The backing pad also helps distribute vibration and reduce disc wear, which can improve disc life and deliver a smoother finish compared with using discs without a proper backing pad. Overall, it’s a simple but crucial accessory for anyone doing metalwork, fabrication, or surface‑preparation tasks with an angle grinder.