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A hand drill is a type of handheld power tool, also called a pistol drill. It is mainly used to drill holes and is powered by AC power or lithium batteries. The hand drill is one of the most commonly used and best-selling products in the power tool industry and is widely used in construction, decoration, furniture and other industries to make holes in objects or holes through objects.
The electric motor is used as the power source to drive the drill shaft to rotate through the gears, and the drill chuck installed on the drill shaft grips the drill bit and other working heads to complete the corresponding processing work.
The primary components of a pistol drill: drill chuck, output shaft, gear, rotor, stator, housing, switch and cable.
Hand drill (pistol drill) - something used for drilling holes in metal materials, wood, plastic, etc. When equipped with a positive rotary switch and electronic speed control equipment, it can be used as an electric screwdriver. Some types are equipped with rechargeable batteries, which can operate normally without external power supply for a certain period of time.
Special type: right-angle drill - suitable for use in narrow working spaces. (The head of the drill is at 90 degrees to the body, reducing the working space required.)
The hand drill can be divided into one-way single-speed drill and multi-speed positive rotary drill according to the structure.
According to the shape of the handle, it can be divided into double side handle, gun handle, rear bracket, ring handle, etc.
According to the application range of hand drill, it is divided into standard, heavy-duty and light-duty. Heavy-duty electric drill output power and torque are relatively large, mainly used for high-quality steel and other kinds of steel drilling, with high drilling power, can apply a large axial force; light electric drill output power and torque are smaller, mainly used for non-ferrous metals, cast iron, plastic and other materials drilling, general steel can also be used, but can not apply too much axial force. Standard electric drill function and application range between heavy and light.
According to the different varieties of power supply, the hand drill has single-phase series excitation electric drill, DC electric drill, three-phase communication electric drill, etc.. DC electric drill power supply generally uses rechargeable batteries, and now DC electric drills are widely used.
