The Forney 60036 Mounted Point is perfect for tough grinding tasks. Its durable 60 grit aluminum oxide ensures a long life, and it is ideal for grinding, polishing, and deburring hard surfaces. It has an RPM rating of 30,370 and a 1" x 1" cylindrical W220 shape. This product is a must-have for anyone with a 1/4" chuck high-speed drill.