A method and apparatus for controlling lateral drilling for accurate placement of laterally running conduit for electrical, fluid or gas piping. The disclosure provides a stable platform which is adjustable and may be quickly assembled in a basement or subterranean building area to allow accurate placement of lateral deep drilling to provide connection between a below grade space, through a foundation wall and through soil to place the termination point of the desired hole very close to a target location. The apparatus can be driven with an internal drill or a hand drill to drive a screw-like mechanism forward once the geometry of the intended conduit drilling is set up.

The present invention relates to a machining center, and more particularly, to a machining center which allows a bed and a column to be integrated, thereby being capable of reducing the overall size of the apparatus and saving production costs and allows vibrations and displacements occurring in each of 5 axes to be rapidly transmitted to other axes to minimize relative vibrations and displacements between the axes, thereby being capable of performing high-precision machining.

The invention provides a machine tool capable of expanding the slidable range of the moving unit without making the oil feeding system complicated. A machine tool in which a moving unit slides against a supporting unit with a sliding surface of the supporting unit facing a sliding surface of the moving unit, comprises a first oil groove formed on an unexposed portion of the sliding surface of the supporting unit; a second oil groove formed on an unexposed portion of the sliding surface of the moving unit; and an oil inlet formed on one of the first oil groove and the second oil groove. Lubricant fed through the oil inlet is supplied to the other of the first oil groove and the second oil groove.

Cement or other liquid-like material fills the hollow tubes of a machine tool under construction. The machine tool structures are held rigidly against a fixture while the substance dries. The machine tool so constructed is relatively lightweight and rigid, and obviates the need for precision machining of large portions of the apparatus.

Cement or other liquid-like material fills the hollow tubes of a machine tool under construction. The machine tool structures are held rigidly against a fixture while the substance dries. The machine tool so constructed is relatively lightweight and rigid, and obviates the need for precision machining of large portions of the apparatus.

The invention discloses a mailbox punching device, comprising a baseplate, two frames which are correspondingly arranged at two ends of the top of the baseplate, and a box arranged between the two frames on the two ends through a lifting device. The inner bottom of the box is provided with a first steering cavity with an opening facing downward, and a second steering cavity extends vertically in the box above the first steering cavity. A first sliding groove is connectedly set on one inner wall of the second steering cavity, and a steering platform, through bearings, is rotatably mounted in the first steering cavity. A first steering shaft, which extends into the second steering cavity, is fixedly arranged on the top of the steering platform, and a first bevel gear is fixedly mounted on the first steering shaft in the second steering cavity.

According to one implementation, a drilling machine includes a drilling structure and a travelling machine. The drilling structure drills an object to be drilled composed of at least one structural object on a platy part. The travelling machine positions the drilling structure in a travelling direction of the travelling machine by travelling in a longitudinal direction of the at least one structural object using the at least one structural object as a guide.

The invention discloses a mailbox punching device, comprising a baseplate, two frames which are correspondingly arranged at the two ends of the top of the baseplate, and a box arranged between the two frames on the two ends through a lifting device. The inner bottom of the box is provided with a first steering cavity with a an opening facing downward, and a second steering cavity extends vertically is up and down extended in the box above the first steering cavity. A first sliding groove is connectedly set on the one inner wall of a the second steering cavity, and a steering platform, through bearings, is rotatably mounted in the first steering cavity. A first steering shaft which extends into the second steering cavity, is fixedly arranged on the top of the steering platform, and a first cone pulley bevel gear is fixedly mounted on the first steering shaft in the second steering cavity.

A core drill includes a housing, a first handle extending from the housing and defining a gap between the handle and the housing, a motor supported within the housing, and a battery removably coupled to the housing and configured to provide power to the motor. The battery has an output voltage greater than 40 volts. The core drill further includes a spindle configured to rotate about a rotational axis in response to torque received from the motor and a fluid delivery system configured to supply fluid to the spindle. The fluid delivery system includes a valve operable to regulate a flow of fluid to the spindle and an auxiliary handle removably coupleable to the housing at each of a first mounting point and a second mounting point.

A rebar hole doweling cart to construct or repair sidewalks, driveways, roadways, curbs, floors and the like. The cart has a frame with wheels, an elongated upwardly extending riser with a handle, and a nose plate that pivotally supports a drill mounting assembly near the ground. The mounting assembly holds an electric hammer drill and its bit in an aimed direction. The cart is rolled forward to tap a hole in a concrete slab and place the bit in a set aimed direction. The cart handle is then pushed forward to rotate the nose plate down into gripping engagement with the ground to advance the drill bit forward to form the rebar hole in the slab. During this forward handle rotation, the drill mounting assembly simultaneously counter-rotates (pitch pivotal movement) relative to the nose plate to maintain the drill bit in its set aimed direction.