A drilling tool includes: a drive source; a bit attachment portion to which an end bit is attachable; a power transmission portion configured to apply a motive force to the end bit attached to the bit attachment portion; an operation portion switchable between an ON-state and an OFF-state by a manual operation and configured to receive a setting operation for setting a stop condition; and a controller configured to set the stop condition based on the setting operation, and to start driving of the drive source in response to a first switching operation for switching the operation portion from the OFF-state to the ON-state. In a state where the stop condition is set, even when the operation portion is in the ON-state, the controller stops driving of the drive source in response to the stop condition being met while the drive source is being driven.

A cam lock connected with a fence assembly includes a handle portion, a top carrier and a bottom carrier connected by a threaded shaft. The handle portion and top carrier are positioned above the fence assembly and a work table or surface; wherein the bottom carrier is positioned below the fence assembly and work table or surface. The top carrier and bottom carrier both have a pair of alignment arms with a space positioned therebetween, the alignment arms of the top carrier nest with the alignment arms of the bottom carrier. The handle portion and top carrier both have cam surfaces that engage one another such that when the handle portion is rotated around the axis of the threaded shaft the handle portion is raised or lowered thereby raising or lowering the bottom carrier, thereby locking or unlocking the fence assembly in a quick, durable, easy and accurate manner.

A cam lock connected with a fence assembly includes a handle portion, a top carrier and a bottom carrier connected by a threaded shaft. The handle portion and top carrier are positioned above the fence assembly and a work table or surface; wherein the bottom carrier is positioned below the fence assembly and work table or surface. The top carrier and bottom carrier both have a pair of alignment arms with a space positioned therebetween, the alignment arms of the top carrier nest with the alignment arms of the bottom carrier. The handle portion and top carrier both have cam surfaces that engage one another such that when the handle portion is rotated around the axis of the threaded shaft the handle portion is raised or lowered thereby raising or lowering the bottom carrier, thereby locking or unlocking the fence assembly in a quick, durable, easy and accurate manner.

A tool device has a deceleration unit, a tip tool, and a reaction bar. The deceleration unit increases a torque that is input to the deceleration unit. The tip tool is rotated when receiving a motive force from the deceleration unit. The reaction bar is fixed to the deceleration unit. An external force can be made to act on the reaction bar to receive a reaction force that is generated during rotation of the tip tool.

A tool device has a deceleration unit, a tip tool, and a reaction bar. The deceleration unit increases a torque that is input to the deceleration unit. The tip tool is rotated when receiving a motive force from the deceleration unit. The reaction bar is fixed to the deceleration unit. An external force can be made to act on the reaction bar to receive a reaction force that is generated during rotation of the tip tool.

The present invention is directed to a portable drill press apparatus for drilling a bore perfectly perpendicular to a surface. This apparatus includes a horizontal base plate having an enlarged aperture and a horizontal adjustment plate having an adjustment plate aperture. The adjustment plate is parallel to and releasably connected to the base plate by a plurality of releasable fasteners extending through a plurality of adjustment slots in the adjustment plate. A plurality of guide bolts extends vertically from the adjustment plate through a horizontal guide plate, the guide plate being parallel to the adjustment plate and slidable along the plurality of guide bolts. The guide plate has a guide plate aperture. A vertical back plate interconnects the guide plate and at least one drill clamp, the guide plate and drill clamp extending parallel to each other. The drill clamp has a variably-sized drill aperture for clamping a portable drill.

The present invention is directed to a portable drill press apparatus for drilling a bore perfectly perpendicular to a surface. This apparatus includes a horizontal base plate having an enlarged aperture and a horizontal adjustment plate having an adjustment plate aperture. The adjustment plate is parallel to and releasably connected to the base plate by a plurality of releasable fasteners extending through a plurality of adjustment slots in the adjustment plate. A plurality of guide bolts extends vertically from the adjustment plate through a horizontal guide plate, the guide plate being parallel to the adjustment plate and slidable along the plurality of guide bolts. The guide plate has a guide plate aperture. A vertical back plate interconnects the guide plate and at least one drill clamp, the guide plate and drill clamp extending parallel to each other. The drill clamp has a variably-sized drill aperture for clamping a portable drill.

The present invention is directed to a portable drill press apparatus for drilling a bore perfectly perpendicular to a surface. This apparatus includes a horizontal base plate having an enlarged aperture and a horizontal adjustment plate having an adjustment plate aperture. The adjustment plate is parallel to and releasably connected to the base plate by a plurality of releasable fasteners extending through a plurality of adjustment slots in the adjustment plate. A plurality of guide bolts extends vertically from the adjustment plate through a horizontal guide plate, the guide plate being parallel to the adjustment plate and slidable along the plurality of guide bolts. The guide plate has a guide plate aperture. A vertical back plate interconnects the guide plate and at least one drill clamp, the guide plate and drill clamp extending parallel to each other. The drill clamp has a variably-sized drill aperture for clamping a portable drill.

The present invention is directed to a portable drill press apparatus for drilling a bore perfectly perpendicular to a surface. This apparatus includes a horizontal base plate having an enlarged aperture and a horizontal adjustment plate having an adjustment plate aperture. The adjustment plate is parallel to and releasably connected to the base plate by a plurality of releasable fasteners extending through a plurality of adjustment slots in the adjustment plate. A plurality of guide bolts extends vertically from the adjustment plate through a horizontal guide plate, the guide plate being parallel to the adjustment plate and slidable along the plurality of guide bolts. The guide plate has a guide plate aperture. A vertical back plate interconnects the guide plate and at least one drill clamp, the guide plate and drill clamp extending parallel to each other. The drill clamp has a variably-sized drill aperture for clamping a portable drill.

A cam lock connected with a fence assembly includes a handle portion, a top carrier and a bottom carrier connected by a threaded shaft. The handle portion and top carrier are positioned above the fence assembly and a work table or surface; wherein the bottom carrier is positioned below the fence assembly and work table or surface. The top carrier and bottom carrier both have a pair of alignment arms with a space positioned therebetween, the alignment arms of the top carrier nest with the alignment arms of the bottom carrier. The handle portion and top carrier both have cam surfaces that engage one another such that when the handle portion is rotated around the axis of the threaded shaft the handle portion is raised or lowered thereby raising or lowering the bottom carrier, thereby locking or unlocking the fence assembly in a quick, durable, easy and accurate manner.