United Abrasives vitrified grinding mounted points are made from aluminum oxide grain.  Use for deburring and finishing ferrous metals such as iron, steel and welds.  These mounted points are a low cost alternative to carbide burrs and are dressed for perfect balance to perform without vibration or run-out.  Provide fast stock.   Type "A" is designed for offhand applications.  1" round point and a 1/4" shank.  For die grinders.