What other types of drill bits are available besides PDC bits?

The following are some common drill bit types other than PDC drill bits:

1. Toothed Wheel Drill Bit:

Breaking rock by rolling of the tines, suitable for a variety of formations, especially harder formations.

2. Scraper Bit:

Relying on the cutting action of the scraper to break the rock, mainly used for drilling in soft strata. 

3. diamond drill bits:

In addition to PDC drill bits, there are also natural diamond drill bits, which have extremely high hardness and abrasion resistance and are suitable for hard formations.

4. Core Drill Bits:

Used for drilling core samples for geological analysis.

5. Impact Drill Bit:

Utilizing impact to break rock, commonly used for drilling hard rock or concrete, etc.

6. Down hole drill bit:

Mainly used for drilling operations in open pit mines and geotechnical engineering.

7. Reaming drill bit:

Used for enlarging the diameter of existing drill holes.

8. Tricone Drill Pipe Bits:

Used in conjunction with specific trigonous drill rods, commonly used in some special drilling conditions.