Bumpy Breaker    Standard Breaker    Handed Breaker Chipbreaker Selection Guide    Break Master (CBN/PCD)    For Chamfering Negative Type Medium–Rough Cutting GU PMKNSH GE PMKNSH UX type PMKNSH UG type PMKNSH type General purpose breaker with type General purpose breaker with Reliable general purpose breaker Long-selling general low cutting force and excellent excellent rake face wear resistance in with strong cutting edge purpose breaker wear resistance high efficiency machining 2.0 1.7 0.25 2.05 2.0 0.25 0.2 B Medium Cutting 25° 0.25 15° 21° 7° 3° 23° 4° Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type Inserts C D R S T V W C D R S T V W C D R S T V W C D R S T V W EG PMKNSH UM P M K N S H GUW type PMKNSH type General purpose breaker for exoticaloyswith type General purpose ground type Breaker with wiper edge for high excel ent chip control and wear resistance breaker for medium cutting efficiency medium finishing 2.5 0.09 1.75 2.0 0.3 30° 0.15 14° 23° C Wiper Insert Relief angle 0° CNMG1204 ○○ type Relief angle 0° SNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type C D R S T V W C D R S T V W C D R S T V W D EM type PMKNSH MU type PMKNS H ME PMKNSH MX type PMKNSH Breaker with excellent fracture Economical double-sided type Breaker for rough cutting with excel ent rake face Breaker with strong cutting R Medium–Rough Cutting and crater wear resistance breaker for high speed cutting wear resistance in high speed machining edge for interrupted cutting 2.5 2.5 2.4 2.3 0.05 0.3 20° 0.3 0.2 0.4 20° 4° 4° -15° Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type S C D R S T V W C D R S T V W C D R S T V W C D R S T V W UZ type PMKNSH GZ type PMKNSH HM type PMKNSH MM P M K N S H Standard breaker with stable Reliable standard breaker Wide, M class, handed breaker type Ground type breaker with cutting performance with strong cutting edge for medium to rough cutting with wide and gentle rake angle 1.9 1.9 low cutting force 2.95 T 0.3 2.7 0.15 14° 0.25 16° 15° 0.2 4° 25° 10° Relief angle 0° CNMG1204 ○○ type Relief angle 0° CNMG1204 ○○ type Relief angle 0° TNMG1604 ○○ type Relief angle 0° SNMG1204 ○○ type C D R S T V W C D R S T V W C D R S T V W C D R S T V W V W Solid CBN Ceramic Work Material: P Steel M Stainless steel  K Cast iron  N Non-ferrous metal  S Exotic alloy  H Hardened steel Chipbreaker Application Range (Insert Inscribed Circle up toφ12.7 mm) Medium Cutting Rough Cutting Stainles Steel Cast Iron Exotic Alloys 6 6 MU type/MX type 6 M 6 Without breaker K 6 S (mm) (mm) ME type (mm) UP type EM type (mm) (mm) EG type cut 4 cut 4 cut 4 cut 4 GZ type cut 4 of GU type/ of HM type of EG type of UZ type of MU type Depth 2 UG type GE type Depth 2 Depth 2 EF type EX type Depth 2 Depth 2 UX type EF type EX type/UP type 0 0.3 0.6 0.9 0 0.3 0.6 0.9 0 0.3 0.6 0.9 0 0.2 0.4 0.6 0 0.3 0.6 0.9 Feed rate (mm/rev) Feed rate (mm/rev) Feed rate (mm/rev) Feed rate (mm/rev) Feed rate (mm/rev) The chipbreaker application ranges above show reference values. Actual values may vary depending on the part number. For details, see the stock information in the following chapters. B9