An end mill is a type of milling cutter. It is distinguished from the drill in its application, geometry, and manufacture.
...and here's the segment from "How It's Made" that covers the more general principles of making a HSS end mill. You can see that OSG has a more advanced process for their carbide end mills.
Technical Support Blog
At Next Generation Tool we often run into many of the same technical questions from different customers. This section should answer many of your most common questions.
We set up this special blog for the most commonly asked questions and machinist data tables for your easy reference.
If you've got a question that's not answered here, then just send us a quick note via email or reach one of us on our CONTACTS page here on the website
Our technical section is written by several different people. Sometimes, it's from our team here at Next Generation Tooling & at other times it's by one of the innovative manufacturer's we represent in California and Nevada.