What is the proper name for a 5 point socket and where can you buy one?

What is the proper name for a 5 point socket and where can you buy one?
It is just called a 5 Point Socket or sometimes a Pentagon Socket and you can get them at online stores such as www.mytoolstore.com and Snap-On tools.
It is just called a 5 Point Socket or sometimes a Pentagon Socket and you can get them at online stores such as www.mytoolstore.com and Snap-On tools.


We in the electrical trade usually refer to these 5-sided sockets as "penta" sockets. "Eazypower" has a website where these can be purchased, and they refer to them as "Pentagon B-Box Socket".