Oil Well Drilling Tools Crossover Sub for Drill Pipe, Drill Collar and Kelly

Crossover sub is mainly used to connect upper and lower drill tools in different connectors in drilling operations. Also it can be used to protect other tooling in drill stem (called saver sub) or be used to deliver outgoing air to the bit face just above the bit (called bit sub).

The length of crossover subs is generally measured from shoulder to shoulder. Typical lengths range from 6" - 28" long going up in increments of 2 inches with AISI 4145H, AISI 4145H Mod, AISI 4340, AISI 4140-4142 and Non-magnetic material. All connections are phosphate-coated or copper plated to improve resistance to corrosion. Crossover subs come in three basic types: A Pin (male) * Box (female); B Pin (male) * Pin (male); C Box (female) * Box (female)

Crossover Sub for Drill Pipe

Crossover Sub for Drill Collar

Crossover Sub for Connecting with Kelly and Swivel

Tiptop was established in the year of 2006, located in the center of China, Xi’an City, which is an ISO certified comprehensive manufacturer & distributor in the field of Oil & Gas upstream, downhole drilling tools, downhole fishing tools, downhole mud motor, and servicing the worldwide drilling companies, EPC contractors and oil companies. With our great diligence & years of experiences, we have built a long term cooperation with clients from North America, Middle East, Europe, Southeast Asia and other areas.

-One stop procurement service at more favorable prices

Being in the field of oilfiled for more than 13 years , Tiptop team can offer customers with whole package requirements in favorable prices , which are supported by Tiptop qualified vendors .

-Strict quality control & Continuous after-sales service

All of Tiptop supplied products are from API certified manufacturers. For each enquiry, from order placement to final delivery, no matter for the whole package or small spare parts, we have internal inspection team to ensure the superior quality, strong packing & timely delivery. Any TPI inspection are available with Tiptop from SGS/BV/TUV/DNV etc..

Besides,Thoughtful and prompt after-sales service will be provided to guarantee customerS' benefits .