Selecting the Ideal End Mill for Your Milling Job

Milling Machine in a workshopA key part of any machining business is selecting the right rotary end mill. With so many end mills to choose from, people (even experts) can get confused from time to time. Milling tool providers, such as, says that certain elements are important in picking the right tool. To make sure you select the right end mill for your milling job, here are some factors that you should keep in mind.

Flute Numbers

It’s vital to know the right number of flutes for your job as the flute numbers can vary immensely. The rule of thumb here is that your finish will look better when you add more flutes. It’s also important to note that more flutes can make it difficult for you to eject a chip. There’s also the need to raise the feed for multi-flute end mills to avoid the tool from burning or dulling.

End Mill Materials

Tungsten carbide and cobalt steel alloy (called by people as high-speed steel) are the two primary materials used to produce end mills. For end mill materials, you can machine softer materials with HSS and harder materials with tungsten carbide. It’s best to reserve tungsten carbide for tougher jobs.

End Mill Lengths

The rigidity of your tooling and the depth of your cut or slot are the two primary considerations you need to take note when selecting the length of your end mill. In choosing your end mill, go for something that can cut the required depth. Furthermore, see if you can select the shortest possible end mill. This way, you ensure that your tooling is as rigid as possible and decrease the risk of chatter at the same time.

Flute numbers, end mill materials, and end mill lengths are factors to take note when choosing the ideal end mill. These factors will allow you to run a more efficient operation and help you save money.