Toolin' Around Sonic Blog

Toolin' Around Sonic is Sonic Tools LP's technical blog. Learn more about cutting tool geometry, coatings, tool wear, feeds and speeds, material-specific machining, and anything else you'd come across in the machine shop. Built for machinists, CNC programmers, and shop owners who want the reasoning behind the decision, not just the answer.

End Mill Coatings Explained: AlTiN, AlCrN, TiB2, and More

Posted by Cam Glass on 04.30.26

Think of end mills as the wrenches or measuring tools on your bench: each one tells you something about the job. When a wrench slips or a caliper gives an off reading, you know there's a reason, and … read more