Slick 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 drill collars designed for efficient hole drilling. Our slick drill collars are API 7-1 compliant and perfect for oilfield operations. Trust GPE Oil Machinery Co., Ltd, a reliable drill collar manufacturer and supplier.

GM Drill Collar by GPE Oil Machinery Co., Ltd

GM Drill Collar is an essential component in the BHA (Bottom Hole Assembly) used for drilling. It provides weight on the bit and keeps the drillstring in tension, ensuring efficient drilling operations. The GM Drill Collar has been approved by the NS-1 certification, ensuring its high quality and reliability.

Features and Benefits:

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


• Strict metallurgical specifications are followed to ensure consistent maximum depth of hardness throughout the drill collar.


• With a hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs, the GM Drill Collar is designed to withstand demanding drilling conditions.


• Connections are completed with a phosphate coating, providing protection against the elements and preventing galling during initial make-up.


• Cold-rolled thread roots on API and H-90 connections ensure secure and reliable thread engagement.


• Comes with pressed steel thread protectors for all drill collars equipped with standard connections, ensuring safe storage and transportation.

Choose GM Drill Collar by GPE Oil Machinery Co., Ltd for superior drilling performance and peace of mind.