Project Farm Tests Hole Saws

Todd of Project Farm did his usual admirably-thorough testing on a number of hole saw brands, from DeWalt, Irwin, Bosch, Milwaukee, Lenox, Morse, and others, testing 13 brands in all. He tested for material hardness, speed of cut, accuracy of cut, chip dispersal, and wear on the bit. Three different thickness/hardnesses of metal were tested.

In the end, the best performer was the MK Morse brand with carbide teeth. Proving that expensive doesn’t always mean best, the MK Morse only costs $8.45 (compared to other brands costing upwards of $40). Todd also found that the Milwaukee Dozer ($9.45) performed very well, as did the Irwin (at $8.42).


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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