Flex Drill Collars for Well Drilling

• After-sales Service: 24/7
• Warranty: 1 Years
• Manufacturing Process: CNC Milling
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: 4130
• Name: Drill Collar
• Color: Blue
• Transport Package: Export Packing
• Specification: 79.4mm -279.4mm
• Production Capacity: 150000

Product Description

Flex Drill Collars for Well Drilling

Our API 7-1 Drill Collars are designed for efficient drilling operations. These flexible, non-magnetic collars have a 79.4 OD and are 3 meters long. Perfect for hole drilling, they meet API standards and are ideal for non-magnetic applications. Trust GPE Oil Machinery Co., Ltd for reliable drilling tool collars.

GM Drill Collar

GM Drill Collar

The GM Drill Collar, manufactured by GPE Oil Machinery Co., Ltd, is a crucial component in the Bottom Hole Assembly (BHA) used for drilling. It provides the necessary weight on the bit and ensures the drillstring remains in tension.

Features and Benefits:

• Approved by the NS-1 certification, guaranteeing its quality and reliability.


• Made from 4145H modified quenched and tempered steel for exceptional strength and durability.


• Strict metallurgical specifications are followed to ensure consistent hardness throughout the entire length of the drill collar.


• Offers a hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs at evenly distributed 16 points in any section at room temperature.


• Connections are completed with a phosphate coating to protect them from the elements and prevent galling during initial make-up.


• Cold rolled thread roots on API and H-90 connections for enhanced threading performance.


• Supplied with pressed steel thread protectors for all drill collar equipped with standard connections.