We investigate the kinematics and cutting forces that arise when book blocks are trimmed with one or two eccentrically mounted vibrating disk knives. The disk knife’s eccentricity induces a reciprocating motion relative to the material, resulting in two distinct cutting modes: continuous and intermittent. The research includes theoretical calculations of cutting force distribution for both single and dual vibrating disk knife configurations, which were subsequently validated experimentally. The study culminates in design recommendations for advanced cutting machines that employ a pair of vibrating disk knives.