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FAQ

What's the role of carbon brushes in electric tools?
Carbon brush specific function1. the external current (excitation current) is added to the rotor by carbon brush (input current);2., the static charge on the big shaft is introduced into the earth (carbon brush) through the carbon brush (output current);3. lead the main shaft (ground) to the protection device for rotor ground protection and measure the positive and negative voltage of the rotor;
What kind of power tools are hand drills? 1, 2 or 3?
You can see the cable plug, the aluminum shell is inserted three I tools, is grounded, the aluminum shell and some II tools, because it has a plastic insulation between the stator and the aluminum shell, so it is the installation of two wire plug.
What devices must be available for all hand held electric tools?
Anti leakage, splash prevention, anti movement, anti overheating
What power tools are used as cage birds?
If you want to do copper ornaments, you should distribute the grinding belt, flexible shaft, tool set. You can also buy a flashlight with a flexible shaft, coupled with some tools, you can also head. Bakelite milling can also be used instead of drill, a horizontal milling type fixed electric drill and milling cutter. What depends on your workload?.
How are hand powered tools classified into class I, class II, class III?
Simple methods are: hand-held electric tools for metal shell for class I. The plastic case is of the type ii. Class III uses safe voltage.
What's the difference between a flashlight and an electric screwdriver?
Equipped with torque regulation and restriction mechanism, electric tool for screwing and unscrewing screws, the electric tool, mainly used for assembly line. Is one of the necessary tools for most manufacturing enterprises.
What are the commonly used rotor types for power tools?
Electric drill: the main specifications are 4, 6, 8, 10, 16, 19, 23, 25, 32, 38, 13, 49mm and so on. Figures refer to the maximum diameter of the drill drilled on the steel whose tensile strength is 390N/mm. For non-ferrous metals, plastics and other materials, the maximum drilling diameter is comparable to the original specifications of 30 to 50%.Electric grinding machine: a tool for grinding with a grinding wheel or millstone. A vertical electric wheel and electric angle grinder.Electric wrench and electric screwdriver: used for loading and unloading threaded fittings. The driving mechanism of the electric wrench is composed of a planetary gear and a ball screw groove impact mechanism. Specifications are M8, M12, M16, M20, M24, M30 and so on. The electric screwdriver adopts the embedded clutch, transmission mechanism or gear drive mechanism. The specifications include M1, M2, M3, M4, M6 and so on.The hammer and drill: used for concrete, brick and building components on drilling, slotting, dehairing. With expansion bolts, installation can improve the speed and quality of pipeline, machine equipment; impact hammer principle is to rely on the internal movement of the piston impact force, impact principle of impact drill is running in gear impact force, so the impact hammer is greater.
Is BOSCH's power tools good or MAKITA's power tools?
BOSCH electric tools three characteristics:1. 、 light structure, easy to carry and use.2. more than manual tools can increase labor productivity several times to several times;3., the utility model has the advantages of high efficiency, low cost, small vibration and easy control.