... body as cutting edges.PDC bit is mainly used for geological prospecting,oilfield drilling,coal ecploration,water conservancy ... 50 mm1.0±0.1 mmPCD/PDC diamond cutters for coal mining bits, diamond bitWe manufacture PCD drill bits ... body as cutting edges.PDC bit is mainly used for geological prospecting,oilfield drilling,coal ecploration,water conservancy ... mm4.50 mm1.0±0.1 mm pcd cutter for mining bits