About hole calc

Hole calc is open source software. Bug reports, feature requests and code contributions are welcome.

Visit the GitHub repository to contribute, read license details and technical documentation or to get in touch. You can also


Thanks to the Practical Machinist forum community for inspiration.

This project was built with the Flask web application microframework. It uses Pure.css for layout and styling. The typeface used in the menu and headings is Space Grotesk.

Warranty Disclaimer

This software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.