A drill press has a main housing, a drill unit supported by the main housing for relative movement therewith, and a base coupled to the main housing, the base includes a magnet assembly to create a magnetic field for magnetically latching the base to a workpiece. The magnet assembly is rotatably attached to the base and includes a shaft and at least one permanent magnet disposed on the shaft. The shaft is rotatable between a first position where the base would not magnetically engage the workpiece and a second position where the base would engage the workpiece. An auxiliary handle is pivotably attached to the main housing and movable from a first handle position preventing removal of a power tool battery pack from the main housing and a second handle position allowing removal of the power tool battery pack from the main housing.

A cutting insert adaptor for an insert pocket can include one or more pairs of opposing insert abutment surfaces and pocket abutment surfaces which converge at an acute angle. The one or more insert abutment surfaces are all rotated in the same direction, relative to their paired pocket abutment surface which in turn rotates a cutting insert abutting the cutting insert adaptor relative to an orientation the cutting insert would have if it only abutted the insert pocket instead of the cutting insert adaptor.

An insert adaptor is configured for providing secure clamping of an insert in an insert pocket. The insert adaptor is configured to be located between an insert and an insert pocket and includes at least one magnetic surface configured for applying a magnetic attraction force to the insert pocket or a shim.

A positioning cutter/collet assembly has a cutter/collet and a magnetic attracting position key. The cutter/collet has a cutter/collet key seat recessed in an external annular surface thereof. The magnetic attracting position key is mounted on and magnetically attracts the cutter/collet key seat. The magnetic attracting position key has a body having a protruding rod and a magnetic attracting portion combined with the body and magnetically attracting the cutter/collet to prevent the magnetic attracting position key from separating from the cutter/collet.

Improvements in a self-balancing tool holder or material removal machine that allows for greater accuracy of material removal. The balancer is able to self-adjust, any changes in the assembly are automatically adjusted. The adjustment can account for tool wear, accumulation of debris on the tool and balancing at different speeds of rotation. The tool holder balancer can be a mechanical fastener, shrink fit or bonding to the tool holder or material removal machine. The balancer uses a plurality of balls or any form of movable weight in the ring to provide the balance. The plurality of balls or media can freely move around the inside of the ring to offset any imbalance. The balls roll or spin to unique positions to provide a dynamic balance. The number and size of balls or weighted media is selected based upon the maximum amount of dynamic balancing that is required.

A drilling apparatus comprising: at least one bit; a vacuum shroud, including a compressible boot, disposed around a longitudinal axis of the apparatus and configured to be in operative communication with a vacuum attachment port; and at least one magnetic element disposed near a distal end of the apparatus and configured to attract metallic debris resulting from drilling apparatus operation.

A tool gripping mechanism includes a tool holder and a shaft to which the tool holder is attached. The shaft is fixed to a rotary shaft of a spindle device. A plurality of magnets are disposed in pairs on concentric circles on surfaces of the tool holder and the shaft which face each other. When the tool holder is in a specific phase with respect to the shaft, the magnets of the tool holder and the magnets of the shaft attract each other, and the tool holder is aligned with respect to the shaft in that phase.

A boring bar with electrodynamic actuators is for counteracting vibrations and machine tool provided with such a bar. The boring bar includes a wall, an internal recess and a longitudinal axis. The boring bar has a first electrodynamic actuator with coil windings associated with a moving mass and a spring assembly that are arranged to define a first actuation direction perpendicular to the longitudinal axis of the boring bar. A second electrodynamic actuator has coil windings associated with a moving mass and a spring assembly that are arranged to define a second actuation direction perpendicular to both the first actuation direction and the longitudinal axis of the boring bar. The actuators allow counteraction of the vibrations in the directions perpendicular to the longitudinal axis of the bar. The longitudinal axis also defines the boring direction.

An illuminated tool bit assembly for illuminating a work area for a drill without casting a shadow includes a tool bit that can be inserted into a chuck of a power drill. The tool bit has a well integrated therein for insertably receiving an additional tool bit. A cylinder is provided and the tool bit extends through the cylinder. A lighting unit is integrated into the cylinder to emit light outwardly from the cylinder when the lighting unit is turned on. In this way the lighting unit can illuminate the work area without casting a shadow.

The invention relates to a tool connection for arranging a riveting tool on a riveting tool receptacle, having a contact surface arranged on the riveting tool for supporting the riveting tool on a supporting surface arranged on the riveting tool receptacle. In order to provide a tool connection for arranging a riveting tool on a riveting tool receptacle, by means of which a repetitive riveting operation can be carried out without damage and it is particularly simple to replace the riveting tool, it is provided that a journal is arranged on one of the riveting tool or riveting tool receptacle and a journal receptacle is arranged on the other of the riveting tool or riveting tool receptacle, the journal can be introduced into and removed from the journal receptacle and the riveting tool can be releasably locked to the riveting tool receptacle by a magnetic force.