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![3.5" Dongsin 4-Step Quatro Disc 3.5" Dongsin 4-Step Quatro Disc](https://cdn11.bigcommerce.com/s-uyix53vy84/images/stencil/500x659/products/657/3600/6130x%20Arrangement__49582.1533682827.jpg?c=2)
- Small, rigid, perfect for square edge polishing.
- Must use with backer #6105
- Applications: granite, engineered stone