A land clearing attachment for a tractor device includes semi-helically oriented teeth, knives, or blades radially outward from an outer surface of a rotor. Each tooth, knife, or blade is part of a row of teeth, knives, or blades. Each row is oriented with an offset angle such that the spirally orientation completes angular offset of about 90° or less.

A field management machine includes a rack, a driver, a transmission, traveling wheels, a cutter, and a gear shift lever. A first shift fork controls gear shift of the cutter. A second shift fork controls gear shift of the traveling wheels. The gear shift lever includes a traveling gear shift lever and a cutter gear shift lever. The cutter gear shift lever is connected to the first shift fork. The traveling gear shift lever is connected to the second shift fork. The field management machine includes a trigger rod between the cutter gear shift lever and the traveling gear shift lever. The trigger rod is connected to the cutter gear shift lever or the traveling gear shift lever. The traveling gear shift lever pushes the trigger rod when the traveling gear shift lever is switched to a reverse gear to shift the cutter gear shift to a neutral gear.

A land preparation tool. The tool body can have a longitudinal axis, and include a first imaginary plane and a second imaginary plane. The first and second imaginary planes can intersect orthogonally at the longitudinal axis. The tool body can also include a concave cutting surface tapering from a proximal midpoint to a distal edge comprising a circular blade, and a multi-faceted surface mounting interface disposed on the tool body opposite the cutting surface. The mounting interface can have a plurality of beveled surfaces defining a first pair of V-shaped surfaces and a second pair of V-shaped surfaces, wherein a first apex of the first pair of V-shaped surfaces is disposed in the first imaginary plane and a second apex of the second pair of V-shaped surfaces is disposed in the secondary imaginary plane. A channel can be disposed into the mounting interface and extend into the tool body.

A jump arm assembly for a tilling machine includes a jump arm and a disc hub assembly for coupling a tilling disc to the jump arm. The jump arm has a first end configured to be coupled to a frame unit of the tilling machine and a second end opposite the first end. The disc hub assembly includes a hub housing and a shaft having a first axial shaft section and a second axial shaft section. The first axial shaft section is configured to be rotatably mounted within the hub housing. The second axial shaft section extends outwardly from the hub housing and is at least partially threaded to receive a threaded nut to secure the tilling disc to the disc hub assembly.

An agricultural implement having a rolling basket which includes a plurality of elongated members arranged in a substantially cylindrical shape. A stationary internal scraper is disposed in the inner chamber of the rolling basket and is adapted for breaking up a material from the inner chamber as the rolling basket is rotated around the major axis of rotation of the rolling basket. The internal scraper extends in an upward direction with respect to the major axis of rotation of the rolling basket with the upper edge of the internal scraper distally spaced away from and above the major axis of rotation of the rolling basket and with the lower edge of the internal scraper distally spaced away from and above the major axis of rotation of the rolling basket. The upper edge of the internal scraper is positioned above the lower edge.

A land preparation tool includes a cutting surface having a blade and a mounting interface opposite the cutting surface. The mounting interface of the land preparation tool is configured to detachably connect to a tool holder having a top surface, an end surface, a mounting surface opposite the end surface, and opposing first and second side surfaces extending between the end surface and the mounting surface. The mounting surface has an apex extending downwardly from the top surface and first and second mounting faces. The first mounting face extends inwardly from the first side surface toward the apex and the second mounting face extends inwardly from the second side surface toward the apex.

A method for a cylindrical device includes semi-helically oriented teeth, knives, or blades radially outward from an outer surface of the cylindrical device or rotor is provided. Each tooth, knife, or blade is part of a row of teeth, knives, or blades. Each row is oriented with an offset angle such that the spirally orientation completes angular offset of about 90° or less. The knives may have sharpened edges that are oriented to cut on different planes as the cylindrical device rotates. The knives may be held in place by holders that have configurations to oriented the knives at certain angles.

A garden tiller is disclosed herein. The garden tiller includes at least one handle portion configured to be grasped by a user; a shaft portion coupled to the at least one handle portion, the shaft portion having a first end and a second end, the second end of the shaft portion being oppositely disposed relative to the first end; and a body portion coupled to the second end of the shaft portion, the body portion including an impact motor configured to drive one or more cultivating teeth for loosening and/or displacing soil, the impact motor configured to apply an impact torque to the one or more cultivating teeth so as to more effectively break up compacted soil.