API 7-1 Drill Collars for Hole Drilling - Blue

• 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

GPE Oil Machinery Co., Ltd offers API 7-1 Drill Collars for efficient hole drilling. Our blue drill collars are reliable and durable, making them the perfect choice for your drilling needs. Choose GPE Oil Machinery Co., Ltd as your trusted drill collar supplier, manufacturer, exporter, and distributor.

GM Drill Collar - Product Description

GM Drill Collar

GM Drill Collar, manufactured by GPE Oil Machinery Co., Ltd, is a high-quality component designed for drilling operations. It is an essential part of the Bottom Hole Assembly (BHA), providing necessary weight on the bit and maintaining tension in the drillstring.

Features and Benefits:

• Approved by NS-1 certification, ensuring superior quality and reliability.


• Manufactured from 4145H modified quenched and tempered steel, guaranteeing durability and strength.


• Strict metallurgical specifications followed to achieve consistent maximum depth of hardness.


• Hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs, ensuring excellent performance.


• Phosphate coated connections protect against environmental elements and prevent galling upon initial make-up.


• Cold rolled thread roots on API and H-90 connections for increased thread integrity.


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

Choose GM Drill Collar for reliable drilling operations that meet industry standards and ensure efficient performance.