1:t ungsten carbide strip made of YG6 ,YG8 grade 2:great wear resistance 3 :used for wood ,aluminum,brass,cast iron cutting ... Mk6,used for hard wood used for processing original wood,aluminum section bar,brass rod and cast iron.YG6K1014.85190090.8Has wear ... higher than Mk6,used for processing hard wood,original wood,aluminum section bar,brass rod and cast iron.YG8K2014.7195089Wear and percussion ...