POLICAP® abrasive caps in cylindrical shape, shape A. POLICAP® products have a seamless design and the entire surface area can be used. For universal use on steel workpieces (hardened, heat-treated, non-hardened). Specifically developed for special applications, e.g. in tool and die-making and repair. Also works on plastics, wood and fillers in model crafting. Color code for grit size 150 = black