Speeds & Feeds Card
Surface speeds, RPM, and tap drill — one sheet.
A free printable speeds-and-feeds reference card for hobby machinists — surface speeds, the RPM formula, and tap-drill sizes on one sheet, from the makers of ChipBreaker, the offline machinist calculator.
What it is, and how to use it
- Print it. One page on plain US Letter paper, sized to read from arm's length at the machine.
- Pin it on the shop wall. Right by the mill or lathe, where you actually need it.
- Read the starting value. Find your material and tool, read the surface speed, and work out RPM with the formula on the card.
- Adjust for your setup. These are conservative starting points — tune up for your machine, tooling, and how rigid the job is.
Get the card
Download the card (PDF)Free · US Letter · pin it by the machine.
Questions
Is the speeds and feeds card really free?
Yes. The printable speeds-and-feeds card is a free download from the makers of ChipBreaker — nothing to buy, no account, and no sign-up.
Are the numbers on the card safe to trust?
The card shows conservative hobby starting speeds, not gospel — begin there and adjust for your machine, tooling, and setup, exactly as you would with ChipBreaker.
Do the card and the ChipBreaker app agree?
Yes. Every surface speed on the card is the same low-end starting value ChipBreaker's Speeds & Feeds tool uses, so the card and the app never disagree.
A wall card covers the common cases. ChipBreaker does the exact math.
The card gets you a safe starting speed by hand. ChipBreaker computes the exact RPM and feed for your actual diameter, material, and tool — plus seven more shop tools — all offline, with no account.