Machining Materials

• (K) - Cast Irons - Grey Cast Iron (Cast Iron)
• (H) - Hardened Materials - Painted (Hardened Steel)

Chipbreaker

• (..MA) - Designed for machining brittle materials such as cast irons and painted steels. It has no geometry on the cutting edge. Suitable for heavy roughing **(roughing) in cast irons and light machining in painted steels.

Lathe inserts from Dormer Pramet, a leading cutting tool manufacturer. The choice of the appropriate insert depends on the chipbreaker, i.e., the geometry that helps in breaking and removing the chip, as well as the grade, which describes the microstructure and coating of the insert and directly affects hardness and fracture toughness. The cutting conditions (speed, feed, depth) must be carefully defined to achieve maximum tool performance and life.