See also: Selecting a sub-set of tools
Before you can begin machining a part, EdgeCAM expects you to load a tool of some description. This is so that the correct tool offsets and positioning from the work can be calculated.
Until you load a tool in the turret, you are only allowed to position the turret and select M-Functions commands. Once you have loaded a tool, all cycles appropriate to that tool type can be used.
You can either load the tool information from a database or you can specify a completely new tool, purely for use with the next cycles you select in the current machining sequence using the parameters on this dialog.