Is the motor in the electric torch AC or DC?
The electric drill machine is a general type (serial motor), which can be used on AC and DC power supply.In 1895, the German overtone produced the world's first direct current drill. The outer shell is made of cast iron and can drill holes in the steel plate 4mm. The utility model relates to a hand drill, which is a small drilling tool convenient for carrying, comprising a small motor, a control switch, a drill chuck and a drill bit.
A flashlight is a drilling tool powered by alternating current or direct current batteries. It is a hand-held electric tool.Electric drill is the electric tool industry's biggest selling products, widely used in construction, decoration, furniture and so on Pan industry, opening for the object or objects in the past, also known as hammer in some industries.
The main components of a drill are a drill chuck, an output shaft, a gear, a rotor, a stator, a casing, a switch and a cable.Electric torch (pistol drill) -- a tool used for drilling metal, wood, plastics, etc.. When equipped with positive and negative reverse switch and electronic speed regulating device, it can be used as electric screwdriver. Some models are equipped with rechargeable batteries, which can work normally within a certain period of time without external power supply.