... Performances &applications recommendedYG2590-910.7um2500-2800Good Wear resistance,shuit for processing hard wood ,cost iron ,copper ,A3 steel ... YL10.291-91.50.6um>3800Suit for processing Die Steel,aluminum alloy,stainless steel,cat iron , ... copperKennametal 221091.50.5um>4300Suit for processing Hardneed steel ,hardneed stainless steel ,heat treated materialGermany ...