The EXPLO geotechnical drill rig is suitable for seismic exploration, rotary drilling, augering, coring, down-the-hole hammering, and low depth geotechnical activities. It is portable and light in weight. The restricted areas can be easily accessed by installing the EXPLO geotechnical drill rig in a four-wheel drive vehicle or a road trailer. It is easy to maintain, and can be easily adjusted to the specific drilling conditions. It has robust design, and is easy to assemble and separate.