Metal bond polishing pads . More durable and sharp, improved performance compared with resin bond flexible diamond polishing pads. Greatly reduce the time of polishing the stone. Can be used instead of diamond grinding wheels, more, due to advanced velcro connection it would take less time to change the tool, and due to the pad's less weight, should be less tiring for worker, and the wear of the angle grinder would be obviously less. Designed for use with water. Excellent polishing result for granite, marble, composite material, sandstone, concrete, terrazzo.