Classification of tool cabinets
       1. Tool cabinets can be divided into factory workshop tool cabinets, school-specific tool cabinets and household tool cabinets according to the classification of the place of use.
       2. Tool cabinets can be divided into light tool cabinets, medium tool cabinets and heavy tool cabinets according to their load-bearing capacity.
3. The tool cabinet can be divided into single-rail drawers according to the structure of the drawer, and the drawers cannot all be pulled out.(Similar to the locker at home, but with a larger load-bearing capacity); double-rail drawers, that is, there are fixed rails and moving rails that cooperate with each other, and the drawers can be pulled out completely; three-level rail drawers, (that is, ball guide rails); I-beam rails (this is a simple guide rail with a small load-bearing capacity and cheap).
       4. The tool cabinet is divided according to the level of the workbench:
       The workbench is a reference plane for precision measurement or scribing, so the flatness of the workbench surface characterizes the main accuracy index of the plate quality.
The flatness of the work surface of the workbench refers to the distance between two parallel planes that contain the actual surface and have a small distance.The allowable tolerance value of the flatness of the work surface of the workbench is divided into several levels according to its numerical size, which is called the workbench flatness accuracy.As for the tolerance values that should be divided into several levels, according to what regularity, the standards of tablets in different countries are different.Equipped with a drawer safety hook to ensure that the drawer does not accidentally slide out when closed, and that the drawer does not fall when 100% open.
       China's workbench standards divide the workbench into 6 levels, namely 000, 00, 1, 2, and 3. This accuracy roughly corresponds to 6 levels of flatness tolerance specified in GB1184—80: 1, 2, 3, 5, 7, and 9.
       In view of the fact that the level 000 tablet is not yet available for sale, the procedure divides the tablet accuracy level into 5 levels, namely 00, 0, 1, 2, and 3.