... 1:380,000. Impa ct resistance:520J Our cutter is our most advanced PDC cutter at present. Developed in 2006 and has ... ,1308,1504,1508,1604,1608,1908The advantages of the new cutter is based on the improvement of the technology, which has ... a higher degree. 2. Use a new type of tungsten carbide that different from S-RTC cutters, which improved the strength ...