Polycrystalline Diamond vs Carbide Tooling – Quick Tips | #ManufacturingMonday #DidYouKnow #CNC

Really enjoying AXYZ’s weekly tips, especially when it’s something recently discussed in other circles – in this case polycrystalline diamond (aka ‘synthetic diamond’) CNC bits:

The notion of PCD tooling has been a hot topic of late and with very good reason. These tools are much more expensive than the solid carbide router bits which we’ve all come to love, but is the price justified? This blog reviews PCD tooling and discusses the applications in which a PCD tool should be your tool of choice.

What is PCD?

Polycrystalline Diamond (PCD) tooling is composed of diamond particles that are sintered with a metallic binder at extreme temperatures and pressures. This manufacturing method allows diamond particles to be fused onto a carbide substrate and creates the hardest and one of the most abrasive resistant materials used in CNC router bits.

Read more here.


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

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