API 7-1 Drill Collars for Hole 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 API 7-1 Drill Collars designed for efficient hole drilling. Our non-magnetic, slick, and spiral drill collars are essential drilling tools. Choose from various options, including the NMDC Non-Magnetic Drill Collar and P-550 Non-Magnetic Drill Collar. Available in different sizes, such as OD 79.4, and lengths like 3 meters. Trust GPE Oil Machinery Co., Ltd for your drilling needs.

GM Drill Collar - Product Description

GM Drill Collar

Product Description

The GM Drill Collar is a vital component in the Bottom Hole Assembly (BHA) used for drilling operations. It provides the necessary weight on the bit and maintains tension in the drillstring. Manufactured by GPE Oil Machinery Co., Ltd, the GM Drill Collar has received NS-1 certification.

Features and Benefits

• Manufactured from 4145H modified quenched and tempered steel


• Strict metallurgical specifications ensure consistent maximum depth of hardness through full length heat treating


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


• Connections are completed (phosphate coated) to protect them from the elements and prevent galling upon initial make-up


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


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

Trust the GM Drill Collar to provide the necessary weight and tension for efficient drilling operations.