A newly configured centerpoint drill and a drill attachment device that can be attached to a conventional cordless drill include configurations that require a user's hand to be in direct alignment with the keyless chuck of the drill to enable a user or operator to apply maximum pressure or force during use of a drill to reduce time and effort spent by a user/operator.

In a fastening device for fastening a bolt, a male thread is formed on a side surface of a bolt head part, and a part to be engaged is formed on a top surface of the bolt head part. The fastening device includes a bit having a tension rod having a rod female thread part, and an engaging part installed inside the tension rod and engaging the engaged part, the bit causing the bolt to rotate where the engaged part and engaging part are engaged; a supporter surrounding the tension rod in the circumferential direction such that the lower end part thereof protrudes below the lower end part; a sensor for sensing vertical compression force acting on the supporter; a first motor for causing the bit to rotate about the axis; and a second motor for causing the tension rod to rotate about the vertically extending axis.

Disclosed herein is a fastener feed device. The device includes a guide tube, a feed tube, a plate feed actuator, a structural member, a slide roller, a latch, an actuation member, a shank stop lever, and a head stop lever. The feed tube receives a fastener. The plate feed actuator is proximate the guide tube. The structural member includes a vertical slot. The slide roller is movable within the vertical slot. The latch is connected to the plate feed actuator. The actuation member includes a head kicker portion, a latch slot, and a lever portion. The head kicker portion is received at the opening. The latch is configured to extend through the latch slot. The lever portion is proximate the slide roller. The shank stop lever is connected to the actuation member. The head kicker portion, the shank stop lever, and the head stop lever interact with the fastener.

A shear wrench tool including an electric motor, an output section having first and second output sleeves and a transmission for transferring torque from the motor to the output section wherein in use the output sleeves are caused to be rotated in opposite directions relative to each another, the first output sleeve configured for mating with a nut and the second output sleeve configured for mating with a tip of a bolt to be sheared; the shear wrench tool further comprising an ejection mechanism having a first impact part which is both rotationally and axially movable and which has a first active surface, a second impact part which is rotationally restricted but axially movable and which has a second active surface, the ejection mechanism also having biasing means for urging the first active surface into engagement with the second active surface.

A screwdriver compact in a front-rear direction includes a motor including a stator and a rotor including a rotor shaft extending upward frontward, a switch, a pinion, a clutch operable with the pinion, a bit holder movable in the front-rear direction in front of the clutch, a gear housing accommodating the pinion and the clutch and including front and rear divided parts, a motor housing joined to the gear housing and accommodating the motor, and a resin grip joined to the motor housing and accommodating the switch. The bit holder at a rearward position causes the clutch to be connecting to transmit rotation of the rotor and at a frontward position causes the clutch to be disconnecting to transmit no rotation of the rotor.

The present invention relates generally to the field of accessories for use with impact drivers that are useful for removing a valve seat from a fitting. The device has a first end, a second end and a central body portion. The first end has a shaft that allows the device to be attached to the chuck of an impact driver or drill. The second end has a head that can be placed within a valve seat. Once inserted into the valve seat, the impact driver or drill can be used to spin the device to remove the valve seat from the surrounding fixture.

A method of installing a plurality of nut and bolt fasteners upon a structure is disclosed. The method includes placing a jig around the nut of a first fastener and the nut of a second fastener, securing the jig to the first fastener, and then using a power tool to tighten the nut of the second fastener to a target torque. The step of tightening the nut comprises engaging a socket portion of the power tool with the nut, securing the power tool to the jig such that a handle portion of the power tool is prevented from rotating about an axis of rotation of a socket portion of the power tool when the nut is being rotated by the socket portion. A jig, jig fasteners for securing a jig to a fastener, and a fastening head for a power tool are disclosed.

In an exemplary embodiment, a fastener installation tool for installing hidden fasteners to a distal workpiece is provided. The fastener installation tool may include a housing containing an advancement mechanism for moving a plurality of hidden fasteners and a driving member that is engageable with a foremost fastener of the plurality of hidden fasteners to fasten the foremost hidden fastener to a structural member. The advancement mechanism may include at least a wheel, a carriage, and a linkage member. The linkage member may be connected to the driving member and the carriage such that when the driving member moves towards the foremost hidden fastener, the carriage rotates in a first direction, and when the driving member moves away from the foremost hidden fastener, the carriage rotates in a second direction, opposite the first direction, and further causes the wheel to rotate and move a subsequent hidden fastener into position for fastening.

A power tool attachment part for a power tool includes an elongated housing including an upper housing part and a lower housing part interconnected with the upper housing part. An input gear wheel for connection to an output shaft of the power tool is arranged at a first end of the housing. An output gear wheel with an output connection is arranged at a second end of the housing. At least one intermediate gear wheel is arranged inside the housing to transmit rotation of the input gear wheel to the output gear wheel. A magnet is arranged in the elongated housing, wherein the magnet is arranged to collect ferromagnetic particles.

A driver device comprises a housing and a driving-bit socket in the housing. The driver device may comprise a first guide-leg track on the housing. A first guide leg may be inserted into the first guide leg track. The driver device may also comprise a first guide-leg foot at an end of the first guide leg. The first guide-leg foot may be configured to interface with a surface of the driving recipient. The first guide leg may retract into the first guide-leg track as the driver device drives a driving object into the driving recipient.