The company BH Rock Tools constantly applies a process of continuous improvement in all the solutions offered to the mining market. This in order to increase the profitability of its customers and to expand to most possible projects both nationally and internationally. Such is the current case of La Zanja mining with whom he has been working since 2016. Currently, the use of QL60 series drilling steels has presented some deficiencies in terms of compliance with performance indicators and technical work in them. All this generates that you have a longer time of operational delays, a low drilling speed and therefore a higher cost per meter drilled. BH Rock Tools chose the ND680 series to improve the current performance indicators in the mine. This consists of a hammer manufactured based on the principle of mirror impact technology, much more convex drills and with a greater number of spher...