Carbide Insert Description Page Negative 120° hexagonal inserts for 919 HNMG GU CHIPBREAKER medium roughing / tough rake angle Negative 120° hexagonal inserts for 920 HNMG SU CHIPBREAKER medium machining / positive rake angle Negative 55° rhombic inserts for 920 KNUX R/L 11 CHIPBREAKER medium machining in profiling Negative 55° rhombic inserts for 921 KNUX R/L 12 CHIPBREAKER medium roughing in profiling Negative round inserts for 921 RNMG COMMON CHIPBREAKER medium roughing Negative square ground inserts for 922 SNGG R/L CHIPBREAKER medium light machining Negative square flat top inserts 922 SNMA for roughing Negative square inserts for 923 SNMG COMMON CHIPBREAKER medium roughing Negative square inserts for finishing 924 SNMG FG CHIPBREAKER Negative square inserts for 924 SNMG MC CHIPBREAKER medium machining / negative rake angle Negative square inserts for medium light 925 SNMG ML CHIPBREAKER machining / very positive rake angle Negative square inserts for 925 SNMG MP CHIPBREAKER medium machining / positive rake angle 881