Aug 11,2022
How to choose a wrench? Pay attention to these 7 points
In daily life, a wrench can be described as a commonly used installation and disassembly tool, but there are many brands and types of combination wrench set, and each brand and type has its own advantages and characteristics, so consumers are faced with the problem of choosing a wrench. How to choose a cost-effective wrench? The following 7 points must be considered.
1. Materials
Generally speaking, wrenches are made of carbon steel and chrome-vanadium steel. Carbon steel is most commonly used in the market, but when choosing, you can choose a material with a high grade of chrome-vanadium steel, which is of relatively good quality. .
2. Punching
The punching opening part of the wrench should be round and smooth, and the inner wall of the hole should be free of burrs and knife marks.
3. Tolerance range
As we all know, each nut corresponds to a model, so when unscrewing them, you should also choose the corresponding wrench. When choosing, the opening of the wrench should be appropriately enlarged, so that the nut can be quickly unscrewed, which requires an opening or The plum blossom mouth is accurate in size.
4. Surface treatment
There are many surface treatment methods for wrenches. Among them, the watermark fog treatment is relatively high-end, while the frosted matte surface treatment will have slight differences. In fact, when purchasing a wrench, you can also judge from the above specifications and the quality of the trademark to determine whether the surface treatment is not , The high-quality wrench trademark and specifications are very clear, and the font is uniform.
5. Thickness
The smaller the thickness of the wrench of the same specification, the lighter the weight, and the more comfortable it is for the user to use. Generally speaking, the quality of such a product is also better.
6. Torque and hardness
A high-quality wrench is a combination of hardness and toughness. Only when the two are matched together, the service life of the wrench will be longer.
7. Style
The styles of wrenches are very rich, and the production process of each style is different, but you should know the usefulness of the corresponding specifications and models when purchasing, so as to prevent the use of the wrong style from being delayed.