Prime system for down the hole hammer
Robit® Prime ring bit product family makes it possible to pile both welded and threaded casing tubes using the same ring bit. Pile walls can also be made using the XL2 ring bit. With the Drill Through (DT) model, drilling can be continued with just the pilot.
• Suitable for different wall thicknesses, easy to align and weld
• Available with Flow Control rinsing
• With the Drill Through pilot bit, rock sockets can be drilled in a single work phase
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