Disclosed is a double blade bar for pruning and pollarding, including a supporting framework for a cutting blade and a counter-chop blade extending along a cutting direction, interconnected each other and being operable in alternating rectilinear movement, in opposite direction one another, along the cutting direction, passing from an open configuration of the bar in which the cutting teeth overlap the counter-chop teeth, to a closed configuration wherein each of the cutting teeth is located in a substantially intermediate position with respect to the port defined by two successive counter-chop teeth, and vice versa. The bar also includes a movement transmission unit which present, on the cutting blade, an upper rack which engages, by way of a cogwheel, a corresponding lower rack associated to the counter-chop blade. The wheel is pivoted on a supporting rod around a pivoting axis and driven by a motor.
