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Rock Drilling Steel Rod Extension Rod Connect with Shank Adapter and Thread Button Bit

Rock Drilling Steel Rod Extension Rod Connect with Shank Adapter and Thread Button Bit
rock drilling extension rod are made with high quality of alloy steel bar and tungsten carbides with superior wear resistance and impact toughness superior, through heat treatment so that it can withstand the toughest rock drilling demands, and transmit intensive impact energy into the rock with the least possible loss of energy. They are widely used in all kinds of mining, drilling, quarrying, engineering, construction, water well drilling, oil exploring industries etc.
  • T51 M/F Thread Speed Drill Extension Rod


Rock Drilling Steel Rod Extension Rod Connect with Shank Adapter and Thread Button Bit

Long hole drilling tools

A complete assortment of top hammer tools for long hole drilling, includes MF-rods, extension drifter rod, coupling sleeve, shank adapters and drill bits. Our drilling system offer high rate of penetration, quality straight drill holes, and low total production cost.

Drifting and tunneling


Superior wear resistance means less downtime, longer service life, and bigger profits

With high penetration rate and straight, high-quality holes lowers your production cost

Correct rock tools selection can cut hole deviation in half and increase profitability

Longer service life of drill steel components means your drilling tool cost is reduced

Increased service life means less downtime and fewer injuries

Straighter holes, less hole deviation gives you better-balanced fragmentation

round body MM extension drifter rod-Xiamen Betopper Mining Machinery Co., Ltd.

Product: round body MM extension rod
Length: 610-7315mm
Threaded Type: R22, R25, α330, R32, T38, T45, T51, ST58, ST68, GT60 etc.
Other Body Type: hexagon body
Rod Type: normal type (MM, outside thread of both two ends)
Suitable Machine: hydraulic rock drill
Suitable Block: granite and marble

MM Extension drill rods are manufactured from premium, high-strength, alloy steel and are available in either hexagonal and round configurations. Betopper rods are developed and designed to give you straighter holes with less deviation and longer service life.

For straightness and longer servicelife

Rock drills today generate almost unlimited impact power which makes a need to control that power and, most importantly,

ensure that it is transmitted into the rock as efficiency, accurately and economically possible.



Thread extension rods will be packaged in wooden case or in bundles. 

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Tapered Drill Rod 2

Tapered Drill Rod 1


Bestlink Factory

Xiamen Bestlink Factory Co., Ltd  is  committed  to  provide  the  best  drilling  and  cutting machine,  tools and accessories products in marble and granite stone quarrying,  as well as in civil engineering application, especial demolition project. it is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite  and ornamental stones in china.  



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