What is the name of this plug/socket combo from a rangehood?
Molex is one of the leading brand names for these connectors, there are several different sizes of pins commonly used Based on the amperage.
Some manufactures use different shaped pin and sleeve connectors
There are tools to slide in and release the connectors so the body can be repinned.
The commercial tools are expensive but I have had mine over 20 years.
You can get parts online for a few $  molex pins , extraction tools, kits all available on amazon prime. There are also crimp tools (look a lot like wire strippers with a small pair of crimp Jaws again look up molex crimper.