Non-Magnetic 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

API 7-1 Drill Collars for Well Drilling

Discover our high-quality, durable, and efficient drill collars for well drilling. Our non-magnetic, slick, and spiral drill collars are API 7-1 compliant, making them reliable drilling tools. Choose from a range of sizes, including the versatile pony collar and the short non-magnetic drill collar. Perfect for hole drilling applications.

Drill Collar is a crucial component in the BHA (Bottom Hole Assembly) used for drilling. It provides weight on the bit and maintains tension in the drillstring. Our GM Drill Collar has received certification from NS-1, ensuring its quality and reliability.

Made from 4145H modified quenched and tempered steel, our drill collars adhere to strict metallurgical specifications. This guarantees a consistent maximum depth of hardness through full-length heat treating. The hardness range of our drill collars is between 285 to 341 BHN, and they have a Charpy impact value of 40 ft-lbs at room temperature.

Our drill collars also offer the following features and benefits:

• Connections are completed with a phosphate coating, protecting them from the elements and preventing galling during initial make-up.


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


• All drill collars equipped with standard connections come with pressed steel thread protectors for added protection.

Choose GPE Oil Machinery Co., Ltd for reliable and high-quality drill collars that meet the highest industry standards.