3M 917DC-NA

Top guide 3M 917NA Contour Surface Sanding Sponge, 4.5 in x 5.5 in x .1875 in, Fine. The contoured sponge can be used 3M 917DC-NA for either dry or wet sanding and can be rinsed and reused Extremely flexible, softback. 3M(TM) Contour Surface Sanding Sponge is ideal for sanding wood, paint, metal, plastic and drywall Ideal for sanding wood, paint, metal, plastic and drywall Extremely flexible, "softback" ... Learn more »

3M 917DC-NA Review: 3M 917NA Contour Surface Sanding Sponge, 4.5 in x 5.5 in x .1875 in, Fine. I dug out my old HO train set for the kids to play with. The brass track were oxidized, and I did a little research on what was the best way to clean them off and get them shiny again. One website recommended these 3M sanding sponges so I got one. It's perfect. Cleaned those tracks up perfectly, they look like new and the train is running again. The sponge is soft and easy to hold. My girls helped clean the tracks and were taking turns doing it. All in ... Read more »

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