FEATURES：
·Fit for wet drilling in medium-hard or hard rock.
·Grouped control mechanism,quick to start up, with "air on ,water on, air off,water off" mechanism,convenient to handle and easy to maintain and repair.
·Energy-saving and efficient, long service life of parts, parts highly interchangeable and reliable performance.
·YT28 differs form similar products particularly in its high efficiency, strong flushing and powerful torque.
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