Location: Sturgeon Bay, Wisconsin
- 4in R Prospector Hammer System on a Vermeer D24x40
- 300 psi x 900 cfm
- Ground Conditions: solid rock
- Pilot hole for fiber installation
This bore was over 300-ft (100 m) in length. The drill was not anchored down and was operated on idle fo rthe entire length of the bore. Completed in 12 hours.