CIR170 Down The Hole DTH Drill Hammer For Mining Drilling Rocks When percussion or hammer drilling, the percussion mechanism is called a DTH or down the hole hammer. This drilling tool is located directly above the hammer bit. The driller transfers weight to the bit through the drill pipe as well as provides some rot
2017-07-26
3 1/2" API DTH Drill Pipe For Mining And Stone Quarrying DTH drill tubes are used for connecting DTH hammer and DTH button bits; they are made from seamless tubes. According to different application, different diameters of drill tubes are needed, basically, smaller DTH hammers need smaller DTH drill tubes, vice
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