Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include degaussing coils wrapped about pole extension shoes of the magnetic coupling device.

A drill press includes a main housing, a drill unit supported by the main housing for relative movement therewith, a base coupled to the main housing, the base having a bore formed in a top surface thereof and a magnet to create a magnetic field for magnetically latching the base to a workpiece, and a holding force detection assembly having a plug, a sensor positioned outside the plug to detect the magnetic field within the base, the sensor emitting a variable output voltage signal in response to the detected magnetic field, and a printed circuit board received within a slot in the plug. The holding force detection assembly is received within the bore formed in the top surface of the base.

A magnetic base for an electric machine tool, in particular for a magnetic core drilling machine. A body that is accommodated in a receiving space. At least one first magnet coil constituting an electromagnet, a coil winding of the at least one first magnet coil being wound on a bobbin and a magnetic force of which is switchable between a maximum resultant holding force and a minimum resultant holding force. The coil winding of the magnet coil has two end sections that are each connected to a connecting cable that serves to make electrical contact between the magnetic coil and the electric machine tool. The body has a first side adapted to be coupled to the electric machine tool and has an opposite second side adapted to be placed on a workpiece that is to be processed. End sections of the coil winding are connected to the connecting cables.

A drill press includes a main housing, a base coupled to the main housing, and a drill unit supported by the main housing for relative movement therewith. The base includes a bore formed in a top surface and a magnet to create a magnetic field for magnetically latching the base to a workpiece. The drill press further includes a holding force detection assembly having a plug and a sensor coupled to the plug to detect the magnetic field within the base. The holding force detection assembly is received within the bore formed in the top surface of the base.

A device which includes a guide member which includes a first end portion and an opposing second end portion. The first end portion defines a first plane and an opening is defined by the guide member, wherein the opening extends along the guide member in a direction perpendicular to the first plane. The device further includes a first bubble vial attached to the guide member wherein the first bubble vial extends within a second plane. The device further includes a second bubble vial attached to the guide member, wherein the second bubble vial extends within a third plane, the second and third planes are in angular relationship relative to one another and the first and second bubble vials are each rotationally adjustable relative to the guide member.

The present disclosure is directed to a modular fixture for a rotor shaft assembly and a system for rotor-bolt nut removal. The modular fixture includes a plurality of arcuate plates that is annularly arranged about a common centerline. Each arcuate plate includes a plurality of jack legs that extends from and perpendicular to a bottom side surface of the respective arcuate plate of the plurality of arcuate plates. The system includes the modular fixture and a vertical drill. The vertical drill is connected to at least one arcuate plate of the plurality of arcuate plates. The vertical drill includes a vertically adjustable drive shaft and a bit that is connected to an end of the vertically adjustable drive shaft. In use, the bit cuts or turns a rotor-bolt nut or may core a rotor bolt of a rotor shaft assembly.

An apparatus for drilling a manhole includes a drill comprising a first motor and a drill bit. A rail extends longitudinally away from an exterior surface of the manhole. A carriage is movably engaged with the rail and is coupled to the drill. A mounting device supports the rail on an exterior of the manhole. The mounting device comprises features to transfer axial loading on the drill bit to the manhole. A method for drilling an opening in a manhole includes suspending a drill from a rail coupled to an exterior of the manhole. The rail extends laterally outwardly from the manhole. A drill bit forming part of the drill is rotated while moving the drill longitudinally along the rail toward the manhole. Axial reactive force generated by the drill is transferred to the manhole.

A handheld drill press device includes a spine with a longitudinal section having a geared rack located thereon and a transverse section configured to receive and be coupled to a handheld drill. A carriage frame is slidably coupled to the spine and includes a workpiece connection interface located about the carriage. A gear and a lever handle are both rotatably coupled to the carriage frame wherein the gear is operable to mesh with the geared rack and the lever is configured to provide a torque to the gear and thereby move the carriage frame with respect to the spine.

A pneumatic mechanism includes: a casing having a main body and a base seat; a drive mechanism disposed in the main body; a first air bypass disposed in the main body, a rear end of the first air bypass communicating with the drive mechanism; a second air bypass having a rear end positioned on the base seat; at least one airflow passage disposed on the base seat, one end of which communicating with the second air bypass; at least one sucker disposed on the base seat; and at least one air-sucking passage disposed between the base seat and the sucker. One end of the air-sucking passage communicates with the air chamber of the sucker, the other end communicates with the airflow passage. The pneumatic mechanism is powered by one single power source to operate and produce sucking force.

A magnetically mountable portable drill assembly includes a magnetic base adapted to be mountable to a working surface, a housing coupled to the magnetic base, a motor coupled to the housing, an arbor coupled to the motor for rotation by the motor, a cutter coupled to the arbor for rotation with the arbor and adapted to cut the working surface or a workpiece supported on the working surface, the magnetic base having a front surface facing the cutter, and an illuminator coupled to the magnetic base to emit light from the front surface of the magnetic base for illuminating an end of the cutter and either one of the working surface and the workpiece.