2pcs Diamond Polishing Backer Pads - 80mm/100mm/125mm M14 & 5/8-11 Thread for Grinding Discs - Durable Rubber(Rubber,125mm 5/8)

Material OptionsAvailable in industrial-grade rubber for vibration control or aircraft-grade aluminum for maximum durability. Both variants feature reinforced steel core construction.Technical Specifications，Compatible with 75-125mm ( diamond discs，Dual thread system: M14 & 5/8-11 UNC，Maximum operating speed: 5000 RPM，Center bore diameter: 22.23mm，Net weight: 380-420g (varies by size)devise Features，Cross-knurled surface enhances grip，Precision-machined flat mounting surface，Integrated cooling channels prevent overheating，CNC-balanced rotation for vibration reductionApplication ScenariosConcrete floor polishing，Marble countertop finishing，Terrazzo restoration projects，Stone tile edge profiling，Construction debris removal

• Choose between robust rubber or lightweight aluminum back pads devised for extended durability and use.
• devised for up to 2400RPM, these back pads ensure efficient and safe operation with diamond polishing pads for various applications.
• Built to withstand rigorous tasks, these back pads have a maximum capacity of 5000RPM, making them perfect for grinding and polishing.
• Featuring a cross-knurled surface for enhanced grip and precision-machined flat mounting surface for stability during operation.
• Ideal for concrete floor polishing, marble countertop finishing, terrazzo restoration, stone tile edge profiling, and construction debris removal.