Abstract: A fastener driver includes a battery pack; a striking assembly including a striking member configured to strike a fastener; a drive assembly including at least a drive wheel configured to drive the striking member to move along a central axis of the striking member; an electric motor configured to drive the drive wheel to rotate; and a control circuit configured to control the electric motor to operate, start, or stop. A striking frequency of the striking member is greater than 6 fasteners/second.

Abstract: A fastening tool includes: a striking assembly including a striker configured to strike a fastener, a transmission assembly configured to drive the striker to move; a housing for supporting the transmission assembly; a motor at least partially disposed in the housing; and a magazine for accommodating fasteners. The magazine includes at least two movable channels in which at least some fasteners move.

Abstract: A fastener driver includes a firing pin, a piston connected to the firing pin, a driving member driving a striking assembly to move backward to a top dead center position, and an energy storage device driving the striking assembly to move forward to a bottom dead center position to output an impact force. The distance L3 between the top dead center position and the bottom dead center position is defined as the stroke of the striking assembly, the fastener driver is configured to drive a fastener within a preset length LA to move, and the ratio of the stroke of the striking assembly to the preset length is less than or equal to 1.5 to 1.

Abstract: A tool attachment device for assisting a power tool in performing nailing includes a shell assembly, a rocker, a connection device, a driving wheel, and a transmission assembly. A side of the shell assembly is formed with a hole passage. The rocker is partially placed in the hole passage and is rotatable in the hole passage. The connection device is connected to the rocker and rotates synchronously with the rocker. Nail feeding structures are formed on the driving wheel along a circumferential direction of the driving wheel. The transmission assembly is connected to the driving wheel and the connection device and is configured to drive the driving wheel to rotate unidirectionally. The transmission assembly is disposed between the connection device and the driving wheel.

Abstract: A nail gun includes: a housing; an accessory box for accommodating a fastener and at least partially connected to the housing; and a power output portion for outputting a striking force to the fastener; and an operating member triggered to have at least a first position and a second position, where the nail gun has a maximum desired penetration depth when the operating member is operated to the first position, and the nail gun has a minimum desired penetration depth when the operating member is operated to the second position; and when the operating member switches from the first position to the second position, an angle by which the operating member rotates about a first straight line is less than or equal to 360°.

Abstract: A concrete cutting machine, for wet and dry dual-use cutting, includes a saw blade, which is configured to cut concrete, a motor, which is configured to drive the saw blade to rotate about a first axis, and a bottom plate, which is configured to support the motor and the saw blade. The bottom plate is formed with a first cutting space for the saw blade to pass through. The concrete cutting machine further includes a sliding plate assembly, which is at least partially disposed in the first cutting space, to form a second cutting space smaller than the first cutting space.

Abstract: A tool attachment device for assisting a power tool in performing nailing includes a shell assembly, a rocker, a connection device, a driving wheel, and a transmission assembly. A side of the shell assembly is formed with a hole passage. The rocker is partially placed in the hole passage and is rotatable in the hole passage. The connection device is connected to the rocker and rotates synchronously with the rocker. Nail feeding structures are formed on the driving wheel along a circumferential direction of the driving wheel. The transmission assembly is connected to the driving wheel and the connection device and is configured to drive the driving wheel to rotate unidirectionally. The transmission assembly is disposed between the connection device and the driving wheel.

Abstract: A concrete cutting machine, for wet and dry dual-use cutting, includes a saw blade, which is configured to cut concrete, a motor, which is configured to drive the saw blade to rotate about a first axis, and a bottom plate, which is configured to support the motor and the saw blade. The bottom plate is formed with a first cutting space for the saw blade to pass through. The concrete cutting machine further includes a sliding plate assembly, which is at least partially disposed in the first cutting space, to form a second cutting space smaller than the first cutting space.