DTH Hammer Button Drilling Bit Down-the-hole (DTH) hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks .....
Applications Widely used in mines, quarries, earthworks and other engineering drilling blasting hole, guardrail hole,mountain reinforcement, anchorage ...
DTH Hammer DTH Button Drilling Bit Description Thread button drill bits are made by high quality alloy steel bar and tungsten carbides. Through heat ....