Abstract: A highly portable, manually operated or power actuated, scoring and slicing apparatus for semi-rigid, fibrous, and/or resilient sheet and plank materials comprising a plurality of circular blades, each with a corresponding receiver and adjustment mechanism, a plurality of blade cartridges, removable guides, and latching mechanisms, drive wheels with drive lugs and corresponding lower blades, drive shafts and coupled gear trains, supported by a rigid frame constituting a plurality of rigid frame plates fastened to rigid spacers and pillow blocks, which in combination allow an operator to quickly adjust the present invention for making straight slices or score lines on materials of various widths and thicknesses, or with the removal of the guides, to make arbitrarily curved cuts on sheet or plank materials. The aforementioned device may further incorporate a storage compartment inside a structural frame with access via a hinged lid.

Abstract: An apparatus for cutting a workpiece, the apparatus having a pair of spaced apart rails fixed to a handle, the rails extending away from the handle in a first direction, a guide carriage slidingly engaged with the rails, a blade carriage slidingly engaged with the rails between the handle and the guide carriage, a pair of runners for supporting the workpiece, one of the runners joined with the handle and a second one of the runners joined with the guide carriage, the runners extensive in a second direction non-parallel to the first direction, and a cutting blade engaged with the blade carriage in a position for cutting into the workpiece during relative movement between the apparatus and the workpiece. With the guide carriage adjusted for receiving the workpiece on the runners between the guide carriage and the handle, the blade carriage is adjusted to a location for severing the workpiece.