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FSWizard Machinist Calculator?
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Popularity Score: 6
This app was mentioned in 6 comments, with an average of 1.67 upvotes
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This is the one I use at work. Picked it up with HSMworks on the pc. Not sure if free version has bolt hole calculator but paid dose
https://play.google.com/store/apps/details?id=com.beta.fswizard_lite
That looks like steppers lost steps, not feeds and speeds, those are for your bits vs material, you are pushing your machine too hard, not the toolbits.
Whatever feeds and speeds you find, you gonna have to scale them down, to suit your machine. Feeds and speeds recommended by tool manufacturers assume you have a proper machine in kW power range.
I highly recommend fswizard, because it shows you cutting forces and required power/torque.
https://play.google.com/store/apps/details?id=com.beta.fswizard_lite
If you got smartphone (who does not these days) check out FSWizard Lite. It has tons of reference, calculators, speeds and feeds for aluminum and steel. https://play.google.com/store/apps/details?id=com.beta.fswizard_lite Also available for iOS
That machine runs on GRBL 1.1. I would see if Open Builds Control will work with it. Very easy-to-use and reliable piece of software.
I personally use Vectric software for my CNC work. V-Carve Pro is excellent, easy to use and has everything you could need for anything except 3D work. For that I use Vectric Aspire.
There are several resources online to calculate Feeds and Speeds for given materials and given cutters. G-Wizard calculator from CNC Cookbook is a good one. There's another from Machining Doctor, and even an app for your Android device. Those will give you good starting points but you should always tweak those setting from there for your specific machine.
You'll be told never to let the machine run un attended. Myself, I don't see an issue with it in a use case like your example. Worst likely scenario, the bit will break or the material will move and your project/bit will be ruined. There's always a small chance of a more catastrophic failure but it's really up to you.
That also depends on your machine. Some of the spindles I've seen on lower-end machines won't handle continuous use for that long. If that's the case your danger margin is higher. If the spindle burns up from overuse you've got a fire risk.
https://play.google.com/store/apps/details?id=com.beta.fswizard_lite
This should work.