Abstract: The invention relates an electric sharpener, comprises a main frame, a main shaft, a motor, a transmission wheel, a grinding stone, and an electric control circuit. The motor is mounted on an angular frame which in turn is mounted on the main frame. The transmission wheel is fixed to an end of the main shaft, and the output shaft of the motor is tightly pressed against the periphery of the transmission wheel so as to drive it. A tool rest is fixed onto the main frame in a vertical or horizontal mounting orientation. A water vessel is fixed to the main frame, and the lower portion of the grinding stone dips into the water contained in the water vessel. Special clamps and attachments for grinding different tools are provided. The electric sharpener can be used for grinding various woodworking or household tools.

Abstract: The present invention relates to a sawing direction positioning system for a woodworking bandsaw. The system includes a light-emitting unit for emiting a planar light beam, the light-emitting unit being has a power supply via a lead and positioned above the woodworking bandsaw so that the planar light beam emitted from the light-emitting unit coincides exactly with the plane of the saw blade mounted on the woodworking bandsaw. During sawing, the projection line of the planar light beam always projects on the wood to be sawed and is not obstructed by sawdust. The operator has a good visual field and pushes the wood to be sawed along a right straight line drawn on the wood making sure that the sawing direction is correct or keeps in line with the drawn straight line thereby preventing the kerf from offsetting and reducing thus reducing rejected products.

Abstract: The present invention relates to a sawing direction positioning system for a jigsaw which includes a light-emitting unit for emitting a planar light beam. The light-emitting unit has a power supply via a lead and positioned above the jigsaw so that the planar light beam emitted from the light-emitting unit coincides exactly with the plane of a saw blade mounted on the jigsaw. During sawing, the projection line of the planar light beam always projects on the wood to be sawed and is not obstructed by sawdust. The operator has a good visual field and pushes the wood to be sawed along a curve line drawn on the wood making sure that the projection line always keeps tangential to the curve line drawn on the wood and the saw blade always saws the wood along the projection line to prevent the kerf from offsetting and reducing thus reducing rejected products.

Abstract: The present invention relates to a sawing direction positioning system for a bench saw having a light-emitting unit for emitting a planar light beam installed at a protection plate of the bench saw. The light-emitting unit has a power supply via a lead and is positioned so that the planar light beam coincides exactly with the central plane of a circular saw blade mounted on the bench saw. During sawing, the projection line of the planar light beam always projects on the wood to be sawed and is not obstructed by sawdust. The operator has a good visual field and pushes the wood to be sawed forwardly along the right straight line to ensure that the sawing direction is correct or keeps in line with the drawn straight line, thus preventing the kerf from offsetting and reducing the rejected products.

Abstract: The invention relates an electric sharpener, comprises a main frame, a main shaft, a motor, a transmission wheel, a grinding stone, and an electric control circuit. The motor is mounted on an angular frame which in turn is mounted on the main frame. The transmission wheel is fixed to an end of the main shaft, and the output shaft of the motor is tightly pressed against the periphery of the transmission wheel so as to drive it. A tool rest is fixed onto the main frame in a vertical or horizontal mounting orientation. A water vessel is fixed to the main frame, and the lower portion of the grinding stone dips into the water contained in the water vessel. Special clamps and attachments for grinding different tools are provided. The electric sharpener can be used for grinding various woodworking or household tools.