Plane finishing work using metal files requires mastery of subtle force sensations. The subtle force sensations cannot be learned only with a video training material using VR or AR. In this paper, we describe a support system for mastering a flat metal filing operation using VR, AR, and a tool dynamometer. In addition to the conventional training, the system has added practice of model work with VR goggles, grasping the instincts and tricks of work with AR smart glasses, and grasping force sensations with a tool dynamometer. The trial of this system confirmed a significant improvement in trainees’skill proficiency (effect size 1.73) compared to conventional training. Furthermore, it was confirmed a reduction in the variability in trainee mastery that depended on the instructor’s skill instruction method.
