1. The PDC bit is best used in the soft and medium-hard strata of the large segment. Not suitable for drilling gravel layer and soft and hard staggered strata.
2. The use of low drill pressure, high speed, large displacement drilling, drill bit is good.
3. Before the drill down, the bottom of the hole to clean, to ensure that no metal falls.
4. When the first just down well, to use small drill pressure and low speed running and, to form the bottom of the back to normal drilling.
The 5.PDC drill bits belong to integral drill bits, without any active parts, suitable for high speed turbo drilling.