Abstract: A rolling utility knife is disclosed. The rolling utility knife includes a pair of frame rails and at least one cross-member connecting the pair of frame rails. In addition, the rolling utility knife includes a front roller and a rear roller disposed between the frame rails. A circular blade is adapted to rotate along an outside edge of a first rail of the pair of frame rails. The rolling utility knife further includes a lever secured to an inside edge of the first rail by a fulcrum, where the circular blade secured to a first end of the lever and the blade is adjustable to move vertically relative to the first rail. A pin is disposed at a second end of the lever, where the pin is configured to cause the circular blade to move downward when the rolling utility knife is placed on a planar surface.

Abstract: A rolling utility knife is disclosed. The rolling utility knife includes a pair of frame rails and at least one cross-member connecting the pair of frame rails. In addition, the rolling utility knife includes a front roller and a rear roller disposed between the frame rails. A circular blade is adapted to rotate along an outside edge of a first rail of the pair of frame rails. The rolling utility knife further includes a lever secured to an inside edge of the first rail by a fulcrum, where the circular blade secured to a first end of the lever and the blade is adjustable to move vertically relative to the first rail. A pin is disposed at a second end of the lever, where the pin is configured to cause the circular blade to move downward when the rolling utility knife is placed on a planar surface.

Abstract: A carriage mechanism for use in cutting materials that increases the efficiency of a user and also reduces waste by improving the accuracy of a cut. The mechanism includes a frame having a front pair of apertures and a rear pair of apertures. A front axle is secured to the frame by the front pair of apertures and a rear axle is similarly secured. A pair of front wheels are rotatably mounted to the front axle and a pair of rear wheels are rotatably mounted to the rear axle. A blade is removably and adjustably mounted to the frame so that the blade can be extended from the frame to a preselected depth for cutting as the mechanism is rolled in a straight line path.