... YG6 ,YG8 grade 2:great wear resistance 3 :used for wood ,aluminum,brass,cast iron cutting tungsten carbide strips 1 ... 8195090.5Better wear resistant than Mk6,used for hard wood used for processing original wood,aluminum section bar,brass rod and ... percussion resistance,used for processing hard wood,soft wood ferrous and non-ferrous.YG10XK4014.5200091Suitable for processing hard wood,veneer board,PCB ...