(1) First of all, according to their own needs, the difference is in the family or professional use, usually professional power tools and general family power tools, the difference is mainly in the power, professional power tools with a larger power, general family tools with a smaller power, input power is also small small size, highly integrated power tools in the ease of use than the size of a large, single-function products. Therefore, try to choose feature-rich, compact size, simple structure, easy to store the power tools to buy power tools, you need to buy the outer packaging of the country case is clear, no damage to the power tools to buy the normal appearance of the power tools, plastic parts intact, no obvious shadow wire and dents, no scratches or bump marks, the relevant paint smooth and beautiful without defects, the entire surface of the machine is free of grease and stains, the handle of the switch is smooth, the cable length is generally not not more than a few minutes, and the power tools can be used in the home. The length of the wire and cable is generally not less than 2M power tools related signs clear, complete, parameters, manufacturers, certificates of conformity, etc. are equipped with a hand holding the tool, turn on the power supply, frequent manipulation of the switch, so that the tool is frequently started to observe the tool switch on and off function is reliable, whether it is affecting the site of the TV / fluorescent lamps, etc., so as to determine whether the tool is equipped with anti-interference suppressor power tools powered on the operation of the tool for 1 minute, feel the vibration Situation and observe the commutation sparks, air inlet, etc. is normal.
(2) Select a power tool whose noise is within the permissible range.
(3) Choose the power tools that are easy to maintain and easy to get accessories.
(4) Select power tools to pay attention to the power supply voltage, general hand-held power tools need to provide 22V utility power as an energy driver, do not access 380V industrial power, otherwise it will cause damage to the machine.
Power tools shopping tips
1, if you often drill holes in concrete walls, then a two-kilogram electric hammer is a suitable choice. Due to the electric hammer's cylinder structure, the whacking force is very high and has a whacking frequency of 1,000 to 3,000 per minute, which produces significant force and makes drilling holes in concrete walls a breeze for you. Equipped with an adapter bar and the chuck of a regular electric drill, it can also fulfill the function of a hand drill for multi-purpose use. That is, speed hammer + adapter + 13 mm drill chuck, only a few hundred dollars, and then with a few commonly used drill, then most of your home renovation tasks can be completed by yourself.
2, if in addition to concrete drilling, but also to take into account in the wood and metal drilling, and in the concrete drilling in less than ten millimeters, you can consider the impact drill, impact drills rely on helical gears to produce impact, the impact is not as strong as the hammer.
3, if you often tighten or loosen screws, or drilling holes in wood or iron plate, then you can buy a rechargeable electric screwdriver, which is a convenient tool in these two aspects. A rechargeable electric driver coupled with a driver head set will easily take care of the job at hand for you.
4, hand drill we must know, it is suitable for drilling holes in wood or iron plate, but do not expect it to drill holes in the concrete wall as much, it is easy to do that damage to the machine, a hand drill is the most economical power tools, even if it is imported, but also only a few hundred dollars.
5, curve saw, if your hands are very strong, you can do some of their own furniture or modeling, then the curve saw you definitely need, loaded on the appropriate saw blade, wood, iron, plastic, stainless steel and so on will soon be able to under your hands to process your ideal shape. You can choose from a variety of models of jigsaws to create your own shapes.