Precautions when purchasing power tools: First, the power tool is a hand-held or movable mechanized tool that is powered by an electric motor or an electromagnet and drives the working head through a transmission mechanism. Power tools are easy to carry, simple to operate, and feature-rich. They can greatly reduce labor intensity, improve work efficiency, and realize manual operation mechanization. Therefore, they are widely used in construction, housing decoration, automobile, machinery, electric power, bridge, gardening and other fields. And enter the family in large numbers. The power tool is characterized by light structure, small size, light weight, low vibration, low noise, flexible operation, convenient control and operation, convenient carrying, sturdy and durable. It can increase labor productivity several times to tens of times compared with manual tools; it is more efficient, less expensive and easier to control than pneumatic tools. Pay attention to the following points when purchasing power tools: 1. Different household or professional use according to needs. Most power tools are designed for professionals. When purchasing, they should distinguish between professional and general household tools. Usually, the difference between professional and general household tools is in power. Professional tools use more power to facilitate the professional to reduce the workload. The general household tools are relatively small in engineering and the workload is relatively small. Power does not need to be large. 2, the outer packaging of the tool should be clear, no damage, the plastic box is strong, the buckle of the open plastic box should be firm and durable. 3, the appearance of the tool should be uniform in color, the surface of the plastic parts has no obvious shadows and dents, there should be no scratches or bump marks, the assembly misalignment between the shell parts is ≤0.5mm, the aluminum castings are smooth and beautiful without defects, the whole machine The surface should be free of oil and stains. When holding with your hand, the handle of the switch should be flat. The length of the cable should generally be no less than 2 meters. 4. The nameplate parameters of the tool should be consistent with those on the CCC certificate. The manufacturer's and manufacturer's detailed address and contact details should be available on the instruction manual. The serial number of the product traceable should be on the nameplate or certificate. 5. Hold the tool by hand, turn on the power, frequently operate the switch, make the tool start frequently, and observe whether the on/off function of the tool switch is reliable. At the same time, observe whether there are any abnormalities in the TV sets and fluorescent lamps on the spot. In order to confirm whether the tool is equipped with a valid radio interference suppressor. 6. The tool is energized for one minute. When the machine is held by hand, the hand should not feel any abnormal vibration. Observe the reversing spark. The reversing spark should not exceed 3/2, generally from the air inlet of the tool. Look inside, there should be no obvious arc on the surface of the commutator. There should be no abnormal noise during operation. Concerned about surprises Tag: Hand hold Power tool Commutator Optional Reduce labor intensity Previous: Painting Class: Spraying method of 4 types of paint Next: Locking industry is difficult to lock the lock Security Steel Door,Security Doors ,Screen Door ,Security Screen Doors Wooden & Timber Door Co., Ltd. , http://www.steeldoor-manufacturer.com