Multitool is a human-machine interface for the OrthoPilot Elite orthopaedic navigation system. It allows for the digitalisation of bone references, layers, surfaces and their spatial orientation. The ergonomic handle is integrated into a solid steel body, conceived for durability and precision. An open design simplifies reprocessing. Multitool reduces the number of instruments required and keeps interaction with medical staff to a minimum, thus streamlining processes in the operating theatre.