Seco Tools India [P] Ltd. Offers Chip breaker Inserts for Grey Cast Iron Machining. Seco Tools India [P] Ltd is an ISO 9001 and ISO 14001 certified company. The Chip breaker Inserts for Grey Cast Iron Machining have eight positive cutting edges. Theinserts are cost-effective and user friendly. The Chip breaker Inserts for Grey Cast Iron Machining is designed with an increased rake angle, which increases the cutting edge shear angle. This leads to lower cutting forces and lower levels of transferred energy. The result is lower temperature levels in the cutting zone. Improvement in tool life has been achieved through reduced crater wear, due to lower temperature and load. Reduction in both cutting temperature and cutting forces leads to a reduction in possible chemical attack of the cutting edge, thereby increasing tool life.