... coating 5.ISO9001:2008 approval HRC55 Solid Carbide Saw Blade Wood Cutter FeaturesZHY-550 solid carbide saw balde wood cutter using ALTIN, black coating ... 5um, Co10%, HRC55, CB Carbide material.The specification of solid carbide saw blade wood cutter include Outside diameter, Inner diameter, Teeth, Thickness ... please contact us at all times, thank you! HRC55 Solid Carbide Saw Blade Wood Cutter