Rotary Knife For Drywall and the Like

Abstract

A utility knife with a replaceable circular blade mounted to rotate on the end of the handle. The upper half of the blade is shrouded by the end of the handle, and freely rotates therein. A spacer with a roller end is mounted to be adjusted toward and away from a workpiece to adjust and control the blade's depth of cut. The handle includes a storage compartment for spare blades and has a pivoting cover. For use as a drywall knife, the blade has a continuous edge and a thicker central body that presents discontinuous “points” or edge bodies to the workpiece along the sides of a the cut made by the continuous edge, designed to push apart the paper cover or sheath on the drywall as it makes a cut, and to keep the blade rolling freely as it makes a cut. A tape measure can optionally be incorporated into a rounded handle portion.

Dependencies are inferred from the claim text.