Abstract: A rigid substrate with a first surface is provided with a graven image in that surface that is representative of a first image such as a photograph by a unique method that requires no artistic talent. The photograph is first scanned by an optical scanner to store reflected light values at multiple loci forming an X, Y grid on the photograph. The rigid substrate, such as an aluminum panel, is mounted on a bed of a computer controlled machine tool such as a milling machine. A conical drill bit drills a hole at each X, Y position or locus on the panel. The depth of the hole, drilled, or Z axis is determined by the value of reflected light stored from the optical scanning step. The depth may be directly or inversely proportional to the value. A factor applied to the X and Y values may reduce or enlarge the graven image relative to the first image. The diameter of the hole at the first surface will increase as the depth increases.

Abstract: A rack for tool bits has many apertures in its horizontal top panel for receiving the drill bits, turning tools, and the like. Each aperture may be provided with a soft plastic bushing to prevent damage to the tool edge. A back vertical panel depending from the top panel is provided with rack supporting mechanisms for removably supporting the rack on the vertical wall of a stationary machine tool. The supporting means may include magnetic elements or preferably keyhole shaped apertures in the back panel that cooperate with shouldered machine screws affixed to the vertical wall of the machine tool. A cork surface on a front vertical panel of the rack may be provided for tacking on memos.