Earth and Rock Auger Bits for Excavators up to 15 tons ...
2005-3-9 · the rock geotechnical parameters, which affect the drillability. Figure 2. Methodology of optimum bit selection and operation. Step 2: To select the most appropriate bits for the formation drilled, which are described in the manufacturers product documentation lists. Step 3: To perform full-scale drilling tests on HDR.
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