Product Specification- Thread Size:5/16"-24 Threads- Maximum speed: 15,000 RPM- Sanding pad size: 3 inches- Pad Style: Hook- Net weight: 30 gramsProduct Description- sanding pads are perfect for spot sanding of critical areas, removing welds and rust from metal products, deburring furniture and wood products, mold making, polishing cars and fine waxing jobs.- The hook grinder disc can be used with different accessories to meet your different requirements, such as wool felt, sandpaper, polishing sponge, etc. to make your project perfect.Product FeaturesSHININGEYES sanding pad is your best choice!- The sanding pad is made of PU, which is flexible and has very low thermal conductivity;- Threaded part is made of metal, tough and durable;- Bottom Velcro pad quality assurance for longer use and higher efficiency.