1,ccemented carbide precise instruments 2.Grade: K10,K20,K40,P20,P30,M10 ect ... . 4.short deliver Grade, performance and application of ccemented carbide precise instrumentsGradeEquivalent to ISODensity (g/cm3)HRAT.R.S (Mpa)Application ... -bending strength, used for steel alloy etc. customize ccemented carbide precise instruments