Things to note when purchasing power tools

　　Things to note when purchasing power tools

Things you should pay attention to when purchasing power tools: First of all, a power tool is a handheld or portable mechanized tool that is powered by an electric motor or an electromagnet and drives the work head through a transmission mechanism to perform operations. Electric tools are easy to carry, simple to operate, and have diverse functions. They can greatly reduce labor intensity, improve work efficiency, and realize mechanization of manual operations. Therefore, they are widely used in construction, housing decoration, automobiles, machinery, electricity, bridges, gardening and other fields. , and enter households in large numbers.

The characteristics of electric tools are light structure, small size, light weight, low vibration, low noise, flexible operation, easy to control and operate, easy to carry and use, strong and durable. Compared with manual tools, it can increase labor productivity several times to dozens of times; it is more efficient, lower cost and easier to control than pneumatic tools.

When purchasing power tools, you should pay attention to the following points:

1. Distinguish between household or professional use according to needs. Most power tools are designed for professionals. When purchasing, you should distinguish between professional and general household tools. Usually the difference between professional and general household tools is in terms of power. Professional tools are more powerful to facilitate professionals to reduce their workload. General household tools have smaller projects and smaller workloads, so the input of the tools is smaller. It doesn’t need to be very powerful either.

2. The outer packaging of the tool should have clear patterns and no damage. The plastic box should be strong and the buckle to open the plastic box should be strong and durable.

3. The appearance of the tool should be uniform in color. There should be no obvious shadows and dents on the surface of the plastic parts, and there should be no scratches or bump marks. The assembly misalignment between the shell parts should be ≤0.5mm. The paint on the aluminum castings should be smooth and beautiful without defects. The whole machine should be smooth and beautiful. The surface should be free of oil and stains. The handle of the switch should be flat when held by hand. The length of the cable should generally not be less than 2 meters.

4. The nameplate parameters of the tool should be consistent with those on the CCC certificate. The instructions should contain the detailed address and contact information of the manufacturer and production plant. The nameplate or certificate should have a traceable batch number for the product.

5. Hold the tool with your hand, turn on the power, operate the switch frequently to start the tool frequently, and observe whether the on-off function of the tool switch is reliable. At the same time, observe whether there are any abnormalities on the TV sets and fluorescent lamps on site. To confirm whether the tool is equipped with an effective radio interference suppressor.

6. Power on the tool and run it for one minute. Hold it with your hand during operation. You should not feel any abnormal vibration in your hand. Observe the reversing spark. The reversing spark should not exceed level 3/2. Generally, it should be from the air inlet of the tool. Looking inside, there should be no obvious arc on the surface of the commutator. There should be no abnormal noise during operation.