Feature aluminum oxide and pinhole centers to use with a mandrel. With a flexible backing pinhole discs are excellent for sanding hard-to-reach areas.
- Made of aluminum oxide, red brown in color.
- Resin bonded on to thin flexible back paper.
- Discs are long lasting and water resistant.
- Suitable for smoothing and polishing non-ferrous and precious metals.
- Max. speed is 20,000 RPM.
- Box of 100.
- Use with screw mandrel.