Blue Drill Collar for Well Drilling Model No.: 4130 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 / Spiral Drill Collars for Well Drilling

Introducing our Non-Magnetic Drill Collars for Well Drilling - Blue. These high-quality drill collars are designed to resist magnetic interference, making them perfect for drilling operations. With a durable construction and API certification, they are a reliable choice for your drilling needs. Available in various sizes, including a 79.4mm diameter and 3-meter length. Explore our range of non-magnetic drill collars for sale and enhance your drilling efficiency today.

GM Drill Collar - Product Description

GM Drill Collar

Product Description

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

Features and Benefits

• Approved by the NS-1 certification for guaranteed quality.


• Made from 4145H modified quenched and tempered steel.


• Strict metallurgical specifications ensure consistent maximum depth of hardness.


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


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


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


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