Electric wax knives are heated hand instruments used by technicians to melt, flow, carve, and smooth modeling wax during pattern fabrication for crowns, bridges, and partial denture frameworks. Interchangeable tip designs allow broad wax addition, fine carving, and precise trimming, with adjustable temperature control preventing overheating that can distort fine anatomical detail. As a core hand-tool in the analog wax-up workflow, the electric wax knife enables technicians to sculpt accurate contours and margins before a pattern is invested and cast, directly influencing the fit and occlusal accuracy of the finished restoration.