The DUPLEX are cutter bars with double reciprocating action, blade and teeth that move simultaneously in an opposed way, thus permitting the machine to optimise performance and comfort, reducing consumption and maintenance interventions. Two different types of teeth are available: double-finger Gold type and three fingers ST type. The ST type is recommended for ground littered with stones. The low power absorption, limited weight and features of the frame also allow them to be used with low power tractors as well as on caterpillar machines. The hydraulic lifting supplied as standard allows to work without problems from + 90° (namely vertically) to – 35°, with respect to the horizontal plane. The self-adjusting flexible knife clips keep the best "scissors" cutting condition constant in time, thus allowing the troublesome manual adjustments typical of the bars currently on the market to be avoided, providing a perfect cut without clogging or snagging.