Power tools purchase tips
1, according to the need to distinguish between family or professional use, most power tools are designed for professionals, in the purchase of professional and general household tools should be distinguished. Usually the difference between professional and general household tools in power, professional tools with large power, to facilitate professionals to reduce the workload, general household tools due to small engineering, the workload is relatively small, so the input power of the tool does not need to be large.
2. The outer packaging of the tool should have a clear pattern, no damage, the plastic box is strong, and the buckle of the plastic box should be firm and durable.
3, the appearance of the tool should be uniform color, no obvious shadow and dent on the surface of the plastic parts, there should be no scratches or knock marks, the assembly dislocation between the shell parts is less than 0.5mm, the aluminum casting paint is smooth and beautiful without defects, the surface of the whole machine should be free of oil and stains, when held by hand, the handle of the switch should be flat, the length of the cable line should generally be not less than 2 meters.
4, the nameplate parameters of the tool should be consistent with the CCC certificate, the detailed address and contact information of the manufacturer and the manufacturer should be on the manual, and the batch number of the product should be traceable on the nameplate or certificate.
5, hold the tool with the hand, turn on the power, frequently operate the switch, so that the tool frequently start, observe the tool switch on and off function is reliable, while observing the scene of the TV, fluorescent lamp is abnormal, in order to confirm whether the tool is equipped with an effective radio interference suppressor.
6, the tool power operation for one minute, the operation with the hand to hold, the hand should not obviously feel any abnormal tremor, observe the commutation spark, the commutation spark should not exceed 3/2 level, generally from the tool air inlet to look in, there should be no obvious arc on the surface of the commutator, running, should be normal noise.
