The subject of sale is a solid RMT-050B-4N cutting mechanism with 4 knives - intended for the construction of a chipper driven by a pulley or from a tractor through a PTO shaft. The set is based on a solid and durable housing with built-in 6308 type bearings, has an output for a 40B type auger with a diameter of 40mm, an output for a 35mm diameter pulley and a 10mm wedge, additionally secured with a seger and an output for a standard power transmission shaft used in agricultural tractors, i.e. 6 teeth, 1 and 3/8 inch. The cutting mechanism can be additionally equipped with a pulley / flywheel and a wood auger (with a replaceable pin tip) with a diameter of 100mm. The cutting mechanism is designed to cut wood with a maximum diameter of 5 cm.