Abstract: The present concept is a stump auger used for cutting a tree stumps, the stump auger includes a main shaft with a top end for coupling to a drive mechanism for turning the shaft about a vertical axis, wherein the main shaft is connected at a bottom end to a cone top. The stump auger cone includes a spiral thread extending about the outer surface of the cone from the cone top to the cone bottom. The stump auger further includes at least two boring bars connected to the main shaft, each boring bar includes at least two third blades which include a blade edge on a front face for cutting the tree stump as the stump auger is rotated about the vertical axis. Each successive third blade lies along successive planes, each third blade higher along the vertical z-axis.

Abstract: A mower assembly for cutting and mulching material. The mower assembly comprises a mower housing, a first disc cutter, a second disc cutter and an anvil. The first and second disc cutters are orientated such that their outer edges are spaced apart so that counter-rotation of the discs urges material to move between the discs from an inlet area toward an outlet area. Material travelling from the inlet area to the outlet area is subject to cutting and shredding by cutting teeth on the disc cutters. Material moving into the outlet area is subjected to further cutting and shredding through contact with the anvil.

Abstract: A mower assembly for cutting and mulching material. The mower assembly comprises a mower housing, a first disc cutter, a second disc cutter and an anvil. The first and second disc cutters are orientated such that their outer edges are spaced apart so that counter-rotation of the discs urges material to move between the discs from an inlet area toward an outlet area. Material travelling from the inlet area to the outlet area is subject to cutting and shredding by cutting teeth on the disc cutters. Material moving into the outlet area is subjected to further cutting and shredding through contact with the anvil.

Abstract: The present concept is a stump auger used for cutting and destroying a tree stumps, the stump auger includes a main shaft connected at a top end to a drive mechanism for turning the shaft about a vertical axis, wherein the main shaft is connected at a bottom end to a cone top such that the cone is part of the main shaft. The stump auger cone includes a spiral thread extending about the outer surface of the cone from the cone top to the cone bottom. The stump auger further includes at least two boring bars connected to the main shaft, each boring bar includes at least two third blades which include a blade edge on a front face for shaving, cutting and chipping the tree stump as the stump auger is rotated about the vertical axis and penetrates the tree stump.

Abstract: The present concept a stump auger is used for removing tree stumps. The stump auger includes a main shaft connected at a top end to a drive mechanism for turning the shaft about a vertical axis. The main shaft is connected at a bottom end to a cone top wherein the cone including a thread extending about the outer surface of the cone. The stump auger further includes at least two boring bars, each boring bar includes third blades mounted in stepped offset side by side fashion wherein the inner face of one third blade abuts the outer face of the adjacent third blade. The third blades oriented parallel to a bar axis which defines a boring bar angle theta relative the horizontal, and the third blades also include a blade edge for shaving, grinding and chipping the tree stump as the stump auger is rotated about the vertical axis.