CNC V-Bit Width & Depth Calculator
Estimate a straight V-groove depth from its top width, included tool angle and optional flat tip.
Set up your calculation
An illustrative example is loaded. Replace its values with your measurements, costs or documented settings.
Tooling help: V-bit angle & tip · Z-reference checks
Calculation
Your result
- Geometric groove depth
- 3 mm
- Half-angle
- 45 °
The quote handoff carries your inputs and assumptions. Only an explicit base cost is suggested as a quote cost; prices, rates and measurements remain planning notes.
Choose the tool and check the setup
Understand the cutting profile, material reference and equipment limits before applying the result.
Method & assumptions
Depth = (groove width − flat-tip width) ÷ (2 × tan(included angle ÷ 2)). Tool radius and runout are not included.
- Uses the full included angle, not the half-angle. Models one symmetric straight groove, not lettering toolpath behavior.
- Do not cut deeper than the tool or material permits. Verify the real tool profile in CAM and test on scrap.
Work through the cnc v bit depth example
| Input or step | Example value |
|---|---|
| Example inputs | 6 mm groove; 90° included angle; sharp tip; 12 mm cutting diameter |
| Geometric groove depth | 3 mm |
| Half-angle | 45 ° |
These values match Load example. They illustrate the method, not recommended material, machine or pricing settings. Read the assumptions before using the result.
Common questions
Are the example settings a recommendation?
No. Replace the example with measured dimensions, actual costs and your product or machine manufacturer's limits.
What if an input is incomplete or impossible?
The result is hidden and a field or calculation error explains what needs correction.
Use this in your project
Continue with the next measurement or cost, then keep the assumptions with your quote.
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