Number ============================================= **Standard Word:** ToolNumber **Variable:** Tool.Number **Type:** Integer This word/variable contains the information of the tool number of the active cutting tool. The tool number obtained from the APT/CL file is first assigned to the “Tool.Number” variable. This variable can be used in any script. In addition, the word :ref:`ToolNumber`. is created from this variable. This word is normally used in the commands :ref:`Format Tool Change`. or :ref:`Format Spindle Speed`. (special to Heidenhain).