Flex Drill Collars for Well Drilling - 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 high-quality, non-magnetic drill collars are perfect for well drilling. Available in sizes ranging from 79.4mm to 279.4mm, these flexible drill collars are essential hole drilling tools. Upgrade your well drilling equipment with our steel drill collars. Choose from slick or spiral options. Lengths up to 3 meters available.

GM Drill Collar by GPE Oil Machinery Co., Ltd

GM Drill Collar

Drill Collar is an essential component in the BHA (Bottom Hole Assembly) used for drilling. It provides weight on the bit and maintains tension in the drillstring. The GM Drill Collar, manufactured by GPE Oil Machinery Co., Ltd, is approved by the NS-1 certification.

Features and Benefits

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


• Metallurgical specifications are strictly followed to ensure consistent maximum depth of hardness during full length heat treating.


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


• Thread roots are cold rolled on API and H-90 connections.


• Pressed steel thread protectors are supplied for all drill collars equipped with standard connections.

For more information about the GM Drill Collar, please contact GPE Oil Machinery Co., Ltd.