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 UnitmmTypeDimension DHRhβeQ-800014.510.52.38.7//Q-740016.08.03.15.545°0.7Q-840018.04.10.3Q131313.013.56.78.0Q131515.56.510.018°1.5Q141514.015.07.4Q172717.627.09.019.945°1.0Q182518.025. ...