oil drilling tips include:YG4C,YG6,YG8,YG8C,YG9C,YG10C,YG25,YG11C,YG13C,YG15C We have many mine tools drawing for the tungsten carbide button.The mine tools is one of our main manufacture products.oil drilling tips UnitmmTypeDimensionDHRhαβee0Q1016-110.016.05.412.660°18°2.51.0Q-9800910.316.35.513.363°30'20°1.5Q-9801012.419.06.615.2Q1425-114.225.07.520.030°18°4.52.0Q1635-116.235.08.530.05.0 oil ...