The MUNRO AutoDriver is the machine of choice for contractors, vineyard operators and government departments. The AutoDriver combines in one machine a fast action rockbreaker style hammer that does not leave the top of the post when driving and a hydraulic auger for drilling pilot holes. The AutoDriver has a pat. pending downforce system that can add a percentage of the tractor mass to the driver making it the most efficient machine on the market. Without this downforce system these types of machines lose most of their efficiency trying to drive the machine up instead of the post down. The Autodriver driving function is a one handed operation allowing operators to adjust the machines tilt whilst driving to ensure a straight post. The auger is hydraulically engaged and stowed and can have downforce applied. The system is easy to operate. Its speed and accuracy of setting makes it the most efficient and value for money machine on the market. Combines, in one machine, a fast action earth auger for drilling a pilot hole, with a powerful post driver for setting a tight post every time.