A drum wrench is a special tool used to open and close big containers called drums. These drums can hold things like liquids, powders, or even food products.
The wrench looks like a big screwdriver with a round, flat end on it. This end fits into a special hole on the top of the drum.
When you turn the wrench, it either tightens or loosens the cap on the drum. This cap is like a lid that keeps everything inside the drum safe and secure.
If you need to open the drum, you use the wrench to loosen the cap. Once it's loose enough, you can remove it and get whatever is inside the drum.
Once you're finished with what's inside, you can use the wrench to tighten the cap back onto the drum. This keeps everything in the drum protected until you need to use it again.
Overall, a drum wrench helps you safely and easily access things inside big drums!