... Fine Grain Size4,Direct sale from our own factoryMaterial:Cemented carbide. And your drawings are pretty welcomed.Package:Wooden box. ... carbide chisel tips for Carbide tips which for making chisel cemented carbide drill bits based on customers' requirements.Grades as following :YG6, ... YG6X,YG8,YG8.2,YG11C,YG15,YG20,YG20C,YG20D etc are the traditional material,suitable for the cemented carbide tips ...