CCMT Turning Inserts 80 Rhombic Insert Single-sided, 7 positive relief angle inserts for semi-finish and finish cutting. "M" tolerance edge condition for general applications. Chip breaking in moderate feed range. Positive rake, low cutting forces. Used for a wide range of materials, including non-ferrous and exotic alloys. Insert Grade IC20 ISO Range - (M10-M25)(K10-K20)(H05-H15)(S05-S20)(N05-N25) Coating - Uncoated An uncoated grade for semifinishing, finishing and semiroughing of aluminum, cast iron and stainless steel. Chipbreaker: SM. Application Finish Chipbreaker: 14. Application Finish / Medium