KINGDRILLING thread drill rods are manufactured from high-intensity alloy steel using precision CNC machining. All threads undergo induction hardening through fast heating and cooling processes. Precision temperature-controlled heat treatment ensures extended service life and enhanced mechanical properties.

Holistic carburization increases carbon content in the outer layer, creating a hardened steel body. The solid thread design ensures perfect fit with drill bit inner walls, enabling efficient roadway tunneling, underground mining, and open pit drilling in complex rock formations.

Specify: Thread Type + Diameter + Length

• High Quality: High carbon steel with advanced processing
• Competitive Pricing: Direct factory pricing ensures cost-effectiveness
• Expert Problem Solving: Extensive industry experience provides reliable solutions
• Fast Delivery: Standard production time 25 days, stock items shipped in 2-3 days
• Quality Control: Experienced QC team conducts strict inspection and testing
• Custom Services: Comprehensive OEM and ODM capabilities
• After-Sales Support: On-site technical assistance available

• Surface Hardening Treatment: Extended operating life with excellent anti-wear properties
• Structural Optimization: Enhanced structural strength for easy operation
• Superior Performance: Stable and reliable operation with high drilling speed

A drill rod is a form of bar stock machined to produce tools such as drill bits, taps, dowel pins, shafts, reamers, files, punches and hammers. Manufactured from tool steel ground to tight tolerance diameters, drill rods are soft enough to shape but can be heat-treated to achieve desired hardness.

A box and pin joint, also known as a tool joint, is a component of drilling pipes that acts as a coupling element to make up the drill string. The joint connects with the pipe by welding or using conical threads.

Drill pipes are durable steel pipes that conduct force to the drill bit. In many applications, the drill pipe turns the drill bit, which cuts into rock until reaching target deposits. Nonmagnetic drill collars are often used before the drill bit, particularly in horizontal drilling operations.