diff --git a/ToolDbWindow/ToolTreeView.vb b/ToolDbWindow/ToolTreeView.vb
index f0ff6b3..7d6e6d1 100644
--- a/ToolDbWindow/ToolTreeView.vb
+++ b/ToolDbWindow/ToolTreeView.vb
@@ -3733,6 +3733,7 @@ Public Class ToolTreeViewItem
    ''' Creata the new tool.  This method is invoked by the NewCommand.
    ''' </summary>
    Public Sub OpenDrawFile(ByVal param As Object)
+      ' Scelta del file
       Dim OpenFileDialog As New Microsoft.Win32.OpenFileDialog With {
          .Title = "Open draw file",
          .DefaultExt = ".nge",
@@ -3741,19 +3742,34 @@ Public Class ToolTreeViewItem
          .FileName = m_Draw
       }
       If OpenFileDialog.ShowDialog <> True Then Return
-      'Dim OpenFileDialog As New EgtManageFileDialogV(Application.Current.MainWindow, New EgtManageFileDialogVM()) With {
-      '   .Title = "Open draw file",
-      '   .InitialDirectory = ToolDbWindowVM.m_sToolDirPath,
-      '   .Filter = "File Nge (.nge)|*.nge",
-      '   .FileName = m_Draw
-      '}
-      'If OpenFileDialog.ShowDialog() <> Windows.Forms.DialogResult.OK Then Return
-      m_Draw = Path.GetFileName(OpenFileDialog.FileName)
+      Dim sFileName As String = Path.GetFileName(OpenFileDialog.FileName)
+      ' Verifico che lo stesso file non sia già riferito da un altro utensile
+      Dim NameList As New List(Of String)
+      For Each ItemsTool As FamilyToolTreeViewItem In LibMap.refToolDbWindowVM.ToolsList
+         For Each ItemTool As ToolTreeViewItem In ItemsTool.Items
+            If String.IsNullOrEmpty(ItemTool.Draw) Then
+               EgtTdbSetCurrTool(ItemTool.Name)
+               EgtTdbGetCurrToolParam(MCH_TP.DRAW, ItemTool.Draw)
+            End If
+            If Not String.IsNullOrWhiteSpace(ItemTool.Draw) AndAlso Not ItemTool.IsSelected AndAlso sFileName.Equals(ItemTool.Draw) Then
+               NameList.Add(ItemTool.Name)
+            End If
+         Next
+      Next
+      EgtTdbSetCurrTool(LibMap.refToolDbWindowVM.SelTool.Name)
+      If NameList.Count > 0 Then
+         Dim sTools As String = String.Join(Environment.NewLine, NameList)
+         ' Disegno già utilizzato in: XXXX selezionarne un altro
+         MessageBox.Show(EgtMsg(6082) & Environment.NewLine & sTools & Environment.NewLine & EgtMsg(6083), EgtMsg(15003),
+                         MessageBoxButton.OK, MessageBoxImage.Information)
+         Return
+      End If
       ' Se il file è preso da una cartella diversa da quella degli utensili viene copiato nella cartella degli utensili
       Dim sFilePath As String = Path.GetDirectoryName(OpenFileDialog.FileName)
       If sFilePath <> ToolDbWindowVM.m_sToolDirPath Then
-         File.Copy(OpenFileDialog.FileName, Path.Combine(ToolDbWindowVM.m_sToolDirPath, m_Draw))
+         File.Copy(OpenFileDialog.FileName, Path.Combine(ToolDbWindowVM.m_sToolDirPath, sFileName))
       End If
+      m_Draw = sFileName
       UpdateSceneToolDraw()
    End Sub