Slick Drill Collars for Hole Drilling - 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

GPE Oil Machinery Co., Ltd offers high-quality slick drill collars for hole drilling. Our API standard drill collars are durable, non-magnetic, and heavy-duty. Available in various diameters from 79.4mm to 279.4mm, these premium drill collars are flexible and designed for efficient well drilling.

GM Drill Collar

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

Features and Benefits

• Approved by NS-1 certification.


• 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 a Charpy impact value of 40 ft-lbs guaranteed at evenly distributed 16 points in any sections at room temperature.


• Connections completed with phosphate coating to protect against 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.