Abstract: A drilling machine comprises a power motor unit coupled with a spiral rod and a drill bit shaft and assembled in a mounting frame using a positioning disc. The arbor of power motor mounted on the mounting frame directly drives the drill bit shaft. The spiral rod is disposed at the periphery of drill bit shaft. A plurality of cutters are arranged between the drill bit and spiral rod at the outer perimeter of drill bit with a hollow guide notch above the cutters. The spiral rod is mounted in the positioning disc and engage a plurality of planet gears. When the arbor of power motor turns, it directly drives the drill bit shaft, drives the fast turning of drive gear at the periphery of drill bit shaft, resulting in different turning speeds with the drill bit shaft turning slowly and the spiral rod turning fast.

Abstract: A drilling machine structure is disclosed, characterized in which handles are arranged on the machine body for holding by the operator with both hands. Between the two handles there are assembled a power motor and a plurality of gear plates with different number of teeth to drive respectively center tip and spiral-shaped rotary blade at the lower part of machine body. The center tip and rotary blade are made of different materials in view of the drilling needs. As such, when drilling a hole, the drilling machine drills with the center tip in alignment with the hole center to guide the varying-speed cutters peripherally arranged at the very bottom of rotary blade to perform real rotary cutting and drilling, and the chips from the cutting are instantly and continuously brought to the surface through a lead hole disposed above each cutter under the driving of rotary blade, thereby achieving smooth drilling in different occasions.

Abstract: An agricultural and gardening fertilizer applicator comprised of a container filled with a granular, the container having sloping surfaces at the bottom; a worm gear feed rod, a container output port, the worm gear feed rod subjected to the rotational force of a drive mechanism, the pliant delivery hose conjoined to a long pipe; and a manual switch for starting and stopping the drive mechanism. The drive mechanism is connected to a controller, it consisting of power off, intermittent on, and a continuous on. When the long pipe sharp scoop tip is moved to the root section, pressing the switch causes the drive mechanism to start the rotation of the worm gear feed rod, forcing the fertilizer downward under pressure through the output opening to the worm gear feed rod and into the pliant delivery hose, the long pipe, the sharp scoop tip, and onto the root section.