T51 threaded extension drill rod with MF and guide

T51 Extension Rod Overview

T51 refers to a standardized heavy-duty trapezoidal thread, which ensures a more secure connection.

This series of extension rods is round in shape, with T51 thread specifications, and comes in three different types: T51 male thread to T51 male thread extension rod, T51 female thread to T51 male thread extension rod, and T51 threaded guide extension rod.

Specifications of the T51 Extension Rod

1. Male thread (external thread) T51 round 52 mm to male thread (external thread) T51.
2. Female thread (internal thread) T51 round 52 mm to male thread (external thread) T51.
3. Guide tube, female thread (internal thread) T51 round 76 mm to male thread (external thread) T51.

Technical Information

• Length: 1830 mm
• Weight: Ranges from 25.3 kg to 40.0 kg, with specific details in the table.
• Material: High-strength alloy structural steel, 23CrNi3Mo
• Manufacturing process: Forging process, full carburizing process, high-frequency treatment process, and phosphating process.