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Josh Holbrook Flagstone Breaks Through with a Volvo Excavator & NPK Hammer

Updated: Apr 6, 2020


Josh Holbrook Flagstone attached an NPK GH7 hydraulic hammer to a Volvo EC160 crawler excavator to break rock in a stone quarry. "They are making a beautiful stand-up rock in Susquehanna County," said Drums Territory Sales Manager Ryan Whitmiller.


Purchasing Volvo excavators and NPK hydraulic hammers through Highway Equipment & Supply Co. gives you the perfect combination for any breaking, reduction, mining, excavation, or trenching project. Potential applications include:

  • Rock breaking

  • Slag breaking

  • Oversize material reduction

  • Concrete breaking & recycling

  • Road construction

  • Sidewalk & curb construction

  • Demolition

  • C&D recycling & sorting

  • Underwater applications

  • Site excavation

  • Scaling & tunnel excavation

  • Trenching

NPK is a world-leading manufacturer of hydraulic attachments. We are the ONLY authorized NPK dealer in central and northeastern Pennsylvania.


Bring your NPK hammer in for a certified rebuild, and you will receive a six-month warranty on all workmanship and materials. For more information, or to schedule service, contact your local service manager or product support representative.

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