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The newly redesigned Utility Series Rock Ripper Auger from Pengo allows the auger to “bite” into the rock which reduces the vibration while it increases drilling production. The distinct attack angles paired with the STRATA series SR-76SW carbide drilling grade teeth are designed to cut through the rock – not grind it. All aspects of the Utility Series Rock Ripper have been improved with the new design. Considerable attention has been paid in order to improve drilling rates and reduce vibration.