Specification of Air-cooling Roller bearing bits

Application:

Mining.

Bearing:

Air-Cooling Roller Bearing.

Cutting structure:

Insert bit, conical spherical compacts in inner row and wedge compacts in outer row.

Formation:

Soft and medium with low compressive strength and high drillability, such as soft shale, clay and soft limestone, etc 

Preponderance:

These bits' jet system designs for achieving more footage and higher ROP.

When these bits are used in low water content soft formation, these bits have high ROP, long working life and better gage protection.

Size available:

From 5 7/8" (149.2mm) to 12 1/4" (311.2mm).

Note:

Sizes and types that are not shown above can be customized according to specific drilling requirements.

If you are interested in our products, please give me a reply and we will quote you the best price. Remember to specify the following on enquiry:

* Diameter

* IADC code

* Thread Connection

* Bearing structure

* Drilling formation

For more detailed specifications or catalog please feel free to contact us.

Best Regards!

Rachel Wang