1. Tsis yog pob zeb diamond me ntsis yog tsim los ntawm 1308 PDC cutters thiab hlau;
2. Peb muab cov pob zeb diamond uas tsis yog core nrog 60mm, 65mm, 75mm, 94mm, 113mm, 133mm, 153mm, 175mm, thiab 215mm;
3. Peb kuj muab matrix lub cev PDC me ntsis rau cov dej zoo drilling.