22 AUGUST 2024 WorldWide Drilling Resource® Thanks to the unique modular structure of Robit’s new H Series hammers, with just a few part changes, you can get 16 different variations to meet specific job demands. DHD versions are primarily intended for construction and well drilling, while QL versions are designed as heavy-duty hammers with thicker outer casings for quarrying and production use. The H Series is currently offered in four sizes: 4, 5, 6, and 8 inches. These new models use drill bits with foot valves, and in the future, tubeless versions will be available, allowing the use of drill bits without foot valves for challenging drilling conditions.
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