Carbide actually serves as the primary raw material for end milling cutters. So, when it comes to the relationship between carbide and end mills, there is an inclusion relationship in that end mills are made from carbide, which means carbide encompasses the material aspect that is essential for the production of end milling cutters.
So we also call it carbide end milling cutter. Of course, carbide also includes end milling cutter. So what is the difference between carbide and end milling cutter?
It is mainly distinguished from the following aspects:

Carbide end mills are essentially different:
Tungsten carbide is a material, tungsten carbide material can do end milling cutter, turning blade, milling blade, such as tungsten carbide end milling cutter, tungsten carbide turning blade, tungsten carbide milling blade.
An end milling cutter is a tool. We produce it using cemented carbide material. Specifically, when we are machining, we use it as a tool to process various parts.

The use is not the same:
Cemented carbide is a large category in the entire industry. We can use cemented carbide to do a lot of things. We can make cemented carbide round rods and cemented carbide strips. We make most of the hard tools from cemented carbide.
The purpose of end milling cutter is that many factories need to process parts, such as machining a piece of metal material into a specific shape, like digging out a slot on the part, or machining the workpiece out of some special shape, most of this time you need to use end milling cutter.
Therefore, if the difference between tungsten carbide and end milling cutter is very big, it is different in nature and use, like the tungsten carbide industry is the end milling cutter used for machining on the machine tool.