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Request A ToolBasic Reference Feed & Speed Calculator
This calculator starts from broad reference values stored in the tool. Use it to explore how material selection, diameter and flute count affect the arithmetic. Its generic values are not verified recommendations for your exact cutter or material grade.
Used For
Check the available material selection, tool diameter and flute count.
Formula
RPM follows cutting speed and diameter. Milling feed follows RPM × effective flutes × reference feed per tooth.
Auto Basic
Enter the values you know. The result is calculated in your browser.
Calculation only. Verify toolmaker data, material grade, engagement, machine limits, workholding and actual cutting conditions before production.
Advanced Reference Feed & Speed Calculator
Review the additional variables shown in this tool.
Auto
Enter the values you know. The result is calculated in your browser.
Calculation only. Verify toolmaker data, material grade, engagement, machine limits, workholding and actual cutting conditions before production.
Inspect The Material Reference Values
- Select a material reference to populate illustrative cutting-speed and tooth-feed values. The visible fields drive the calculation and remain editable. Replace the generic values with documented inputs for the actual tool and material before planning a cut.
- Check diameter, effective teeth and the unit mode before calculating.
- Replace generic values with an appropriate documented source for the actual tool and material before planning production.
Formula And Units
RPM follows cutting speed and diameter. Milling feed follows RPM × effective flutes × reference feed per tooth.
Illustrative Calculation
For comparison only, 250 m/min, a 10 mm diameter, four flutes and 0.05 mm/tooth produce about 7,958 RPM and 1,592 mm/min. Replacing either source value changes the result even when the material family label remains unchanged.
Why A Material Family Is Not Enough
Coating, geometry, tool series, alloy condition, hardness and engagement can all change the appropriate source data. This tool does not establish those conditions from a material dropdown.
Use A Documented Starting Point
For production planning, take suitable speed and tooth-feed values from the tool supplier and enter them in the main feed and speed calculator. Selecting a material fills illustrative speed and chip-load fields. The visible fields drive the result, so replace them with suitable toolmaker data when you have it. Record the source and any machine constraint with the final setup. The advanced reference panel recalculates feed and material removal rate at capped RPM. For an ideal cutting-time estimate, use the main feed and speed workspace and enter the cutting distance. Generic presets do not establish suitable cutting conditions.
Check the formula reference or report a result that does not match your calculation.
Calculation Process With Example Values
These values demonstrate the arithmetic. They are not a cutting-data recommendation or, for the automatic tool, a statement of its stored presets.
| Step | Substitution | Result |
|---|---|---|
| RPM From Illustrative Source Data | 1000 × 100 ÷ (π × 10) | 3,183.10 RPM |
| Feed From Illustrative Tooth Feed | 3,183.10 × 4 × 0.03 | 381.97 mm/min |
Reference Presets Are Not A Tool Database
The stored material values do not identify exact tool series, hardness, coating or engagement. In the advanced reference panel, the spindle ceiling limits the RPM used for feed and material removal rate. Use the manual feed and speed workspace when you also need a cutting-distance and ideal-time check. Retain the supplier source with the values you enter.
Material Reference Questions
Does Selecting Stainless Steel Identify A Specific Grade?
No. The label is a broad reference. Read the stainless material page for the grade and condition details to establish before selecting cutting data.
Does This Tool Retrieve Live Manufacturer Data?
No. Its material values are stored in the calculator. It has no live product lookup or supplier database connection.
Help Improve This Resource
Report An Error
Share this page address, the entered values and the result you expected. Include the source of your comparison so the formula, units and explanation can be investigated.
Report An ErrorCNC Feeds & Speeds Editorial Desk
The site brings calculation tools and machining references into one workspace. Use the editorial and site information to understand its purpose and limitations. Send corrections with a reproducible example through the error report form.
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