A reciprocating saw includes a housing, a motor, and a drive mechanism. The motor includes an output gear rotatable about a motor axis. The drive mechanism includes a driven gear that engages the output gear and is rotated by the motor. The driven gear has a circumference and is vertically-oriented within the housing. The drive mechanism also includes an output shaft coupled to the driven gear and configured to reciprocate relative to the housing. The drive mechanism further includes a single counterweight fixed relative to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.

A percussive massage device that includes a housing, an electrical source, a motor positioned in the housing, a switch for activating the motor, a push rod assembly operatively connected to the motor and configured to reciprocate in response to activation of the motor, a massage attachment configured to be removably attached to the push rod, and an attachment module operatively connected to the housing. The housing includes first, second, and third handle portions that cooperate to define a handle opening, wherein the first handle portion defines a first axis, the second handle portion defines a second axis and the third handle portion defines a third axis, and wherein the first, second, and third axes cooperate to form a triangle.

A power tool includes a body housing including a first grip, inlet facing a front surface of the first grip, first outlet, and second outlet; a brushless motor held on the body housing and including a rotational shaft; an output unit supported on the body housing in a reciprocable manner; a power transmission mechanism between the brushless motor and the output unit in the body housing to transmit rotational motion of the rotational shaft to the output unit; a controller held on the body housing to control the brushless motor; and a fan held on the body housing and mounted on the rotational shaft. The body housing allows air drawn through the inlet and having cooled the brushless motor to be divided into first and second outlet blows respectively cooling the power transmission mechanism and discharged through the first outlet, and cooling the controller and discharged through the second outlet.

Devices, systems, and methods for a segmented tool include a connection system for selectively connecting segments together for use. The connection system can be collectively formed of complementary portions of the segments which can be interlocked together to block against disconnection.

Devices, systems, and methods for a segmented tool include a connection system for selectively connecting segments together for use. The connection system can be collectively formed of complementary portions of the segments which can be interlocked together to block against disconnection.

A reciprocating saw includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing. The drive mechanism also includes a drive arm coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the drive arm to reciprocate relative to the housing along a spindle axis through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.

A reciprocating saw includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing. The drive mechanism also includes a drive arm coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the drive arm to reciprocate relative to the housing along a spindle axis through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear and rotating with the driven gear through a path and in a same direction. As the counterweight moves through a rearward half of the path, the counterweight generally moves in an upward direction, and as the counterweight moves through a forward half of the path, the counterweight generally moves in a downward direction.

A power tool has a functional component, a motor, a power supply module, a controller and a drive circuit including a first drive terminal and a second drive terminal respectively electrically connected to a first power terminal and a second power terminal of the power supply module, multiple high-side switches wherein high-side terminals of the high-side switches are respectively electrically connected to the first drive terminal, and multiple low-side switches wherein low-side terminals of the low-side switches are respectively electrically connected to the second drive terminal. The controller is configured to output a first control signal to one high-side switch to place it in an on or off state and output a second control signal to one low-side switch to place it in the other state. The low-side terminal of one high-side switch is connected to the high-side terminal of one low-side switch.

A tool is provided in order to facilitate utilization by users in a wide variety of applications. By way of example, a multipurpose tool may include first and second handles configured for relative movement between a closed position and an open position. At least the first handle includes an axle extending thereacross. The multipurpose tool also includes one or more tool members rotatably mounted upon the axle and foldable into the first handle and first and second jaws rotatably connected to the first and second handles, respectively. At least the first jaw defines an opening through which the axle of the first handle extends. The multipurpose tool further includes a resilient member disposed at least partially within the opening in order to apply a bias force to the first jaw during rotation of the first jaw relative to the first handle.

According to various embodiments, a reciprocating saw drill bit is disclosed. The reciprocating saw drill bit includes a spindle with a first axis of rotation, a portion of the spindle defining a cylindrical section having a second axis, where the second axis is not parallel to the first axis. The reciprocating saw drill bit further includes a swashplate having a hole from a first surface of the swashplate to a second surface of the swashplate and a spherical portion having a center point positioned at a fixed distance normal to a centerline of the hole, the hole having an inner surface adapted to fit around an outer surface of the cylindrical section of the spindle. The reciprocating saw drill bit additionally includes a connecting rod, adapted to slide through at least one bushing, the connecting rod having a first end and a second end, the first end of the connecting rod being adapted to connect to the spherical portion of the swashplate via a ball-and-socket/slider joint hybrid, the second end adapted to connect to a removable blade.