Flap grinding disc end is suitable for use with angle grinders. Used in work on the grinding and polishing of metal, steel, concrete, dry wood, varnish / paint. Depending on the intended surface to be treated and removing the selected abrasive grain layer disc. Grit wheels 36 to 40 are used for pre-grinding surface. It provides a low noise level. Abrasive grain: oxide alyuminiya.s