Select the number of cuts, MACS, and cut depth range for your key.
Enter any known cuts if available.
Click Load Chart to generate a progression chart for missing cuts.
Tap or click bitting values in the chart to mark them as eliminated as you progress your key for
quick visual reference.
You can Save your chart as a JSON file to reload later, Load a previously saved chart
using the buttons below.
Generated values in the chart that are separated by commas are separated unknown bittings within the
known cuts. For example, if cuts 1, 2 and 4 are unknown, the chart will show progression suggestions
as xx,x to show the separation; values are displayed from lowest to highest positions.
The chart and controls are mobile-friendly.
Disclaimer: Known information is required for accurate chart generation. This tool is intended for
use by individuals with the necessary knowledge, access to the required information, and an
understanding of key progression procedures. Use this tool responsibly.
Hello! I'm Atlas. I'll walk you through the progression chart step by
step.
