Abstract: A vibratory drill head for use with a drill stand apparatus. The eccentric cams are mounted on parallel drive shafts which are powered by hydraulic motors. The hydraulic motors cause the drive shafts to spin in opposite directions. The counter-rotating eccentric cams eliminate horizontal vibration and maximize vertical vibration. The vibratory drill head is mounted to a drill shaft such as a sample tube. When the vibrating drill shaft is lowered into the soil, the vibrations allow the sample tube to pierce the soil to collect the sample. The minimization of horizontal vibration produces accurate core samples.