Sell drill collar

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We supply high quality and API certified drill collars. These drill collars are phosphate coated or copper plating. All connections are phosphate-coated or copper plating to improve resistance.

Slip groove, Elevator groove and size:
We offer optional slip and elevator recesses to improve handling efficiency and safety according to the requirements of the customers. The upper radius of the elevator recess can be used together or separately. Slip and elevator recesses are machined in accordance with API RP7G guidelines.

We offer steel, cast steel and plastic steel thread protectors for the drill stem products.

The specifications of the drill collars are as follow:
OD (in. ) ID (in. ) LENGTH (mm)
4-1/8 2 9150
4-3/4 2 9150
5 2-1/4 9150
6 2-1/4 9150 or 9450
6 2-13/16 9150 or 9450
6-1/4 2-1/4 9150 or 9450
6-1/4 2-13/16 9150 or 9450
6-1/2 2-1/4 9150 or 9450
6-1/2 2-13/16 9150 or 9450
6-3/4 2-1/4 9150 or 9450
6-3/4 2-13/16 9150 or 9450
7 2-1/4 9150 or 9450
7 2-13/16 9150 or 9450
7-1/4 2-13/16 9150 or 9450
7-3/4 2-13/16 9150 or 9450
8 2-13/16 9150 or 9450
8-1/4 2-13/16 9150 or 9450
9 2-13/16 9150 or 9450
9-1/2 3 9150 or 9450
9-3/4 3 9150 or 9450
10 3 9150 or 9450


Standard: API
Origin: China
Brand Name
DP-Master
Supply Capacity
25,000tons/month
Certifications
API 5CT
Condition of Goods
new
Lead Time from Order to Shipment
75days
Minimum Order Quantity
100Tons
Terms of Payment
30% T/T , balance before shipment