AM – Gear Parts – T9215


High productivity
- AM chipbreaker’s “Lift-Ridge” shape prevents crater wear in cutting at the speed that is 10% higher than the competitor. Also, the special protrusion and the cutting edge with inclination increase the feed rate by 20% due to low cutting force. As a result, the productivity is improved by 1.3 times in internal machining compared to the competitor.

Good chip control
- with the competitor, poor chip control causes scratches on the machined surface. AM chipbreaker provides stable chip control due to the unique chipbreaker geometry and the increased feed rate.

Industry Automotive
Component Gear parts
Material ISO code P - SteelP - Steel
Work material 18CrMo4
Machine(spindle type) CNC Lathe
Tool family Turning
Tool category Internal turning
Product name AM-Chipbreaker
TSR No. 440T
Gear parts


Tungaloy Competitor
Holder A40T-PCLNR12-D500 A40T-PCLNR12-D500
Insert CNMG120408-AM CNMG120408N-Medium chip breaker
Grade T9215 CVD(P20)

Cutting conditions

Tungaloy Competitor
Cutting speed V/c (mm/min) 300 270
Feed f (mm/rev) 0.35 0.3
Depth of cut ap (mm) 3 3
Coolant Wet Wet