The Quick Slice tool lets you “slice” through one or more three-dimensional (3D) objects in a drawing (including mass groups, AutoCAD blocks, and external references) and extract a polyline outline that can be used to produce a profile shape, such as a roof truss. If you have a 3D model of stairs in your drawing, you can use the Quick Slice tool to create a polyline outline of the stair object in a section view, instead of using a section tool.
Unlike the Horizontal Section, Vertical Section, and Slice tools, which produce multiple polyline segments, the Quick Slice tool produces a single polyline. When you slice through the selected object(s), any overlapping parts of the outline are combined in a boolean operation and converted into a polyline that is inserted on the current layer. The Quick Slice tool also differs from the Slice tool in that it does not create a slice marker.