... long service life CNC tools 3.good quality CNC knife 4.grooving cemented carbide blade CNC machine inserts for turning, ... Al2O3 & thick TiCN) , hard matrix.YBD152CVD coating (thick Al2O3 & thick TiCN), hard matrix, it is anti-stripping. ... YBD252CVD coating (middle thick Al2O3 & thick TiCN), hard matrix.YNG151Uniform particle refining organizational ceramal alloy, homogenizing organizational ...