R22 MM/ MF Extension Drill Rod DTH Drill Rods For Surface Drilling

Introduction of R22 Extension Drill Rod:

Extension rod, also named Extension drill steel or Extension drill rod or Extension steel or M/F rod ( Speed rod ) . Produce Hexagonal and round cross sections, Hexagon rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rods and are normally used in extension drilling applications.

Drifter rod, another names are tunneling steels, tunneling rod, drifting drill rod, has Round and hexagon rod available, most of drifting drill steel with drill Steel Hexagon is for tunneling and drifting drilling application. Hexagon rods are more rigid, heavier and transfer energy more efficiently,while increasing flushing.

Specification of R22 Extension Drill Rod:

Advantage of R22 Extension Drill Rod:

1. High grade raw material

2. Manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

3. High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance

Changsha ENYU Engineering Equipments Co.,Ltd. is a professional company engaged in the development, manufacture and export of engineering equipment and accessories.

Our main products include DTH hammers, DTH bits, threaded button bits, tapered bits, drill rod, overburden drilling tools and diamond core bits etc, widely used in mining, quarrying, tunneling as well as other similar heavy industries.

All our products are with the best quality and competitive price in China.

Thanks to advantages above, we have established long term business relationships with many customers from all over the world, especially from Russia, Spain, France, Chile, Australia, Canada, Brazil and South Africa etc.

Reasonable in price, superior in quality, timely in delivery, flexible in trade, we serve clients whole-heartedly.