High-quality Electric Wrench Purchase Points

Wrench is one of the most common installation and removal tools in everyday life. The main principle of the traditional wrench is to use the principle of lever to twist the bolt, nut and other firmware. In recent years, with the continuous progress of technology and development, in order to meet the requirements of more features and convenience, rechargeable wrench was developed and quickly occupied the market.
Buying high-quality electric wrench should pay attention to several points.
First, the parameters: the parameters of the electric wrench is direct factors to determine the performance. The parameters of the wrench include its power, the maximum torsional force and the minimum torsional force and its rated current, the size of the battery capacity, and the need for charging time, etc., These parameters directly determine the work of the wrench in the future.
Second, the material: the common electric wrench material is combination of rubber and iron products or steel products. Therefore, the purchase should pay attention to the corrosion-resistant anti-aging rubber varieties, if iron products should pay attention to whether it is anti-rust work. Electric wrench external matrix aging or rust, is also likely to affect its efficiency.
Third, the product brand and after-sales service issues. Good after-sales service means good service manufacturers, indirectly reflects the quality of the wrench.