Bulroc hammers Down Hole Hammers, Large Diameter Hammers, Concentric Overburden Systems Bulroc hammers
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Large Diameter Hammer

Bulroc's range of Down Hole Hammers includes models designed especially for the Foundation and Piling industries - although there are many other applications where large diameter Hammers are preferred. The Bulroc Hyper 121, Hyper 181 and Hyper 241 between them cover hole diameters from 302mm through to 1,100mm when using conventional Button Bits and from 457mm through to 850mm diameter holes when using the Bulroc CDS Concentric Overburden Systems.
 
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