As the saying goes, ‘To do a good job, one must first sharpen their tools.’. Although a small electric screwdriver may seem ordinary, there is still some knowledge on how to choose and use it correctly.
- According to the needs, distinguish between household and professional use. Most electric screwdrivers are designed for professionals, and when choosing, it is important to distinguish between professional and general household electric screwdrivers. The difference between professional and general household electric screwdrivers is usually in power. Professional electric screwdrivers have higher power to facilitate professionals in reducing workload, while general household electric screwdrivers have smaller engineering projects and relatively less workload, so their input power does not need to be very large.
- The outer packaging of the electric batch should have clear patterns, no damage, the plastic box should be sturdy, and the buckle for opening the plastic box should be firm and durable.
- The appearance of the electric batch should be uniform in color, with no obvious shadows or dents on the surface of the plastic parts, and no scratches or bumps. The assembly misalignment between the shell parts should be ≤ 0.5mm, and the aluminum casting coating should be smooth and beautiful without defects. The surface of the whole machine should be free of oil stains and dirt. When held by hand, the handle of the switch should be flat. The length of the cable should generally not be less than 2 meters.
- The nameplate parameters of the electric batch should be consistent with those on the CCC certificate. The manual should include detailed addresses and contact information of the manufacturer and production plant. The nameplate or certificate of conformity should have a batch number that is traceable to the product.
- Hold the electric screwdriver with your hand, turn on the power, frequently operate the switch to make the tool start frequently, and observe whether the on-off function of the electric screwdriver switch is reliable. At the same time, observe whether there are any abnormal phenomena on the television and fluorescent lamps on site. In order to confirm whether the electric screwdriver is equipped with an effective radio interference suppressor.
- The electric screwdriver should be powered on and run for one minute. When running, hold it with your hand and there should be no obvious vibration. Observe the commutation spark, which should not exceed 3/2 level. Generally, when looking inward from the air inlet of the electric screwdriver, there should be no obvious arc light on the surface of the commutator. During operation, there should be no abnormal noise.
