Oil filter wrench function: the oil filter wrench is used to disassemble and assemble the oil filter, the belt-type oil filter wrench, the pliers type oil filter wrench, the chain type oil filter wrench, the three-jaw type oil filter wrench and cap-type oil filter wrench.

When in use, put the cup wrench on the polygonal surface on the top of the oil filter, and use the same method as the socket wrench. The ring wrench is sleeved on the edge surface of the top of the filter, and when the handle is pulled, the ring of the wrench will be properly stuck on the edge surface according to the size of the filter. The three-jaw wrench needs to be used with a sleeve handle, and the size of the three-jaw should be adjusted according to the size of the oil filter.

How to use the oil filter wrench:
1. After the sleeve rotates, tighten the belt chain more tightly, so as to bring the engine oil grid. Similar to the principle of pythons and animals;
2. The oil grid is the abbreviation of the oil filter, one of the three filters. The main function is to filter the oil in the engine, improve its cleanliness and lubrication, and supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other motion pairs with clean oil to play the role of lubrication, cooling, and cleaning. So as to reduce the wear of the engine, make it play the best function, and extend the life of these parts;
3. According to the structure, the oil grid can be divided into replaceable type, spin-on type, and centrifugal type; according to the arrangement in the system, it can be divided into full-flow type and split-flow type. The filter materials used in the oil grid include filter paper, felt, metal mesh, non-woven fabrics and so on.