The thread tool is in the Power Pack Pro add-on package. Power Pack (not Pro) is available for V11 but the thread tool is not included. The Power Pack Pro add-on has never been available for TurboCAD Mac. E-mail TurboCAD to ask if the thread tool has been added to the Power Pack add-on package. If it has I would like to know. I have this tool in my ViaCAD V10 program that I purchased just to get the Pro version of Power Pack. As far as I know, ViaCAD V11 Power Pack add-on does not have the thread tool either.