With the new HakkiMultiBlade™ you can split up to 24 pieces and then easily change to 8 pieces in only seconds. The automatic hydraulic height adjustment of the splitting blade ensures consistent high-quality firewood even when the diameter of the logs varies. The system has an innovative sensor that measures the diameter of each log and adjusts the splitting blade height accordingly to get optimal results. The 55 Pro has a modern data monitoring system with easy-to-use monitor screen.