Diafront manufactures Premium Quality PDC Cutters for oil drilling and coal mining, simply because of better production technique and product design. Better Sintering Pressure and Temperature Control with 6-Cylinder Cubic Press; Unique surface design for better bonding of Diamond and Carbide Substrate; Higher grade and purer diamond power for better quality PDC Cutters; We carry out laboratory testing and field testing for each new product before deliver to clients that outstands Diafront from other Chinese manufacturers for product quality and consistency. Diafront PDC Cutters are mostly for oil drilling and we make PDC Cutters for Coal Mining as well. Products are featured High Wear/Abrasion Resistance, Excellent Impact Resistance and Good Thermal Stability;