3M™ Flexible Diamond Hand Lap 6200J is a versatile hand-held abrasive that optimizes the sharp cutting action of diamond mineral to grind and finish many materials, including chilled iron, granite, carbide, composites, non-ferrous metals, thermal spray coatings and exotic alloys. Ergonomically designed to enhance operator comfort. The contoured foam backing assists with grip, so an even level of pressure may be applied over the surface area.