... , broach high hardness (stainless/wear-resistant/high precis High-speed cutting tools, carbide broaches, tungsten steel broaches, broach high hardness(stainless ... and durability.MR11: (For high wear-resistant application):Ultra micro-grain quality carbide has property of excellent ... . Moreover, AIS1440C and SUS440C are even better quality of incisiveness and much more excellent anti-worn properties ...