Tool Manager

I made this tool manager for the second generation QtDragon, but there's no reason it couldn't be a standalone application. Currently, you can assign tools to groups, such as Drills, spiral upcuts, whatever. Each tool can be assigned material specific cutting parameters and the running time for each tool is tracked according to how long it was in the spindle while a program was running. The linuxcnc tool table is the source of truth and tools can only be added or removed by editing the tool table. The database can be exported to csv or html.  I'm not a machinist, so this was only a guess on my part about what kind of data to record. Looking for suggestions on features, changes, etc. Regards.
Jim