MATZ Shaped Points are made in both cylinder and bullet shapes. . .for smoothing and polishing hard to reach surfaces. . . grooves, ball corners, holes, clasps, spirals, flutes, and edges. They are widely used for polishing molds, dies, patterns and light castings; for cleaning contact points, solder spots and for relieving stress, micro-deburring, and damaskeening. Maximum Safe Speed 25,000. Revolutions Per Minute.