C31HD - China Factory, Suppliers, Manufacturers

C31HD, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Extension rods

Extension rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water ...
Advancements in Tunneling and Underground Excavation by Drill & Blast

Here in the United States we used to refer to tunneling by drill-and-blast as “conventional” tunneling, which I guess leaves tunneling by TBM or other mechanized means to be referred to as “Unconve...
Hard Rock Tapered Drilling Button Bits Rock Tools

Tapered drill rod (taper steel rod, taper drill steel), which provides a hexagonal chuck section to provide leverage for the rotation chuck bushing. It usually has a forged collar to maintain the ...
Hard Rock Tapered Drilling Button Bits Rock Tools

In the field of drilling and construction, having the right tools is crucial to getting the job done efficiently and effectively. For those tasked with drilling hard rock, Hard Rock Tapered Drilli...
76T45,89T45, thread button bit

From October 12 to October 18, our Sanshan’s technicians conducted field tests on the 2.0 version of 76T45,89T45 thread button bit in miaogou iron mine, qinhuangdao, hebei province. The custo...
Precautions for the use of thread button bits

For proper use of the button bits, guarantee the normal wear of scrapped the button bit, must pay attention to the following: 1 .according to the rock conditions (hardness, corrosion resistance) d...

Bench drilling