Step 2 - Select the grade Negative Insert Geometry Cutting Condition -FS -FP -MS -UP -MP -RP CNGA heavily interrupted cut KCU25 - KCU25 KCM35B KCU25 KCM35B/KCM25 - lightly interrupted cut KCU10B KCU10B KCU25 KCM25B KCU25 KCM15B KYS30 varying depth of cut, KCS10B/ KCS10B/ KCS10B/ KYS30/KYS25/ KCU10B KCM15B KCS10B casting, or forging skin KCU10B KCU10B KCU10B KY4300/KB1630 smooth cut, pre-turned KCU10B/ KCS10B/ KCS10B/ KCS10B/ KCS10B/ KYS25/KY4300/ KCU10B surface K313 KCU10B KCU10B KCU10B KCU10B KB1630 smooth cut, high KCU10B/ KCS10B/ KCS10B/ KCS10B/ KCS10B/ KCU10B - precision / tight tolerance K313 KCU10B KCU10B KCU10B KCU10B Positive Insert Geometry Cutting Condition -FS -HP -LF -FP -MS -MP heavily interrupted cut - - - KCU25 - - lightly interrupted cut KCU10B KCU25 KCU25 KCU25/ KCU10B KCU25 - varying depth of cut, casting, or KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B forging skin smooth cut, KCU10B/ KCS10B/ KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B pre-turned surface K313 smooth cut, high precision / KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B/ KCU10B KCS10B KCS10B tight tolerance NOTE: Bold is first choice when showing multiple grades. 80