Q:Why hand grinding sand turbine, electric drill, impact drill and other power tools plug is two, plug is not three plug

Each of these devices has a "back" logo indicating double insulation protection, and the double insulated layer forms insulation protection between the outer shell and the inner part of the tool, thereby preventing the occurrence of electric shock. So no three plug in,

Q:What material does the power tool housing fit?

Power tools are mainly divided into metal cutting, power tools, grinding power tools, assembly of power tools and railway power tools. Common electric tools have electricityElectric drill, grinder, electric wrench and electric screwdriver and hammer, impact drill, concrete vibrator, planer.

Q:How to detect the rotor of power tools?

Rotor inspection. 1) a self made short circuit device can detect damage. 2) you can detect with a pointer type multimeter.

Q:How are the I, II, and III classes of power tools classified?

The popular point is that:The 1 type of tool is metal housing with ground wire.The 2 type of tool is the insulated housing.The 3 type is low voltageOfficial point of explanation can be searched for power tool category ~!

Q:Is there an electric tool for screwing bolts? It's bolts, not screws

Yes, I use it every day. The electric wrench is specially used to tighten the bolts. It has a sleeve with a bolt size at the front, and different sleeves can be changed to screw the bolts of different sizes. It's very convenient and quick to use.

Q:What kind of power tools are hand drills? 1, 2 or 3?

I class: in the prevention of electric shock protection, in addition to relying on basic insulation, but also the need for zero protection.Class II: the tool itself has double insulation or insulation without the need to protect the ground.Class III: Powered by a secure, ultra low voltage power supply, no voltage higher than the safety supply voltage is generated within the tool.The above is the classification of insulation categories.

Q:What power tools are used as cage birds?

An electric drill or a small bench drill, drill speed is the best because of the speed change drill, drill hole spacing and easy consumption. If you want to do with special accessories can also change the distribution of wood milling, milling machine, special safety and easy to do.

Q: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.

Q:What kind of material does the power tool case have?

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. Then there was a three-phase power frequency (50Hz) electric drill, but the motor speed failed to break through the 3000r/min. In 1914, there was a single-phase electric motor driven by a series of exciting motors, and the motor speed was over 10000r/min. In 1927, the power supply frequency of intermediate frequency electric tool 150~200Hz, it not only has the advantages of high speed single-phase series motor, and has the advantages of simple structure, reliable three-phase motor, but because the need if current supply is limited.

Q:Is Li Xiang power tool good?

If you choose the quality, it can be said to be the best in the country, but the price is a little higher than that of the East