Flex Drill Collars for Well Drilling - Specification: 79.4mm - 279.4mm

• 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

API 7-1 Drill Collars for Well Drilling

Introducing Flex Drill Collars by GPE Oil Machinery Co., Ltd. These drill collars are designed for well drilling with specifications ranging from 79.4mm to 279.4mm. Choose from a variety of options including slick, spiral, and non-magnetic drill collars. Enhance your drilling operations with our reliable and durable drilling tools.

GM Drill Collar - Product Description

GM Drill Collar

GM Drill Collar, manufactured by GPE Oil Machinery Co., Ltd, is a high-quality component used in the Bottom Hole Assembly (BHA) for drilling operations. It provides the necessary weight on the bit and maintains tension in the drillstring.

Features and Benefits

• Approved by NS-1 certification for reliability and performance.


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


• Strict metallurgical specifications followed to ensure consistent hardness throughout the entire length.


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


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


• Thread roots are cold rolled on API and H-90 connections for enhanced thread integrity.


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

Choose GM Drill Collar for reliable performance, superior strength, and durability during drilling operations.