Axis.MajorTickMark (Word)

Returns or sets the type of major tick mark for the specified axis. Possible return values are xlTickMarkCross - Crosses the axis, xlTickMarkInside - Inside the axis, xlTickMarkNone - No mark, xlTickMarkOutside - Outside the axis.

MajorTickMark can be set to one of the following xlTickMark constants:

With ActiveDocument.InlineShapes(1) 
 If .HasChart Then 
 .Chart.Axes(xlValue).MajorTickMark = xlTickMarkOutside 
 End If 
End With