diff --git a/My Project/AssemblyInfo.vb b/My Project/AssemblyInfo.vb
index 4ee3b15..6b2667a 100644
--- a/My Project/AssemblyInfo.vb	
+++ b/My Project/AssemblyInfo.vb	
@@ -70,5 +70,5 @@ Imports System.Windows
 ' by using the '*' as shown below:
 ' <Assembly: AssemblyVersion("1.0.*")> 
 
-<Assembly: AssemblyVersion("2.2.1.4")> 
-<Assembly: AssemblyFileVersion("2.2.1.4")> 
+<Assembly: AssemblyVersion("2.2.1.5")> 
+<Assembly: AssemblyFileVersion("2.2.1.5")> 
diff --git a/ToolsDbWindow/ToolTreeView.vb b/ToolsDbWindow/ToolTreeView.vb
index abced9a..df89db0 100644
--- a/ToolsDbWindow/ToolTreeView.vb
+++ b/ToolsDbWindow/ToolTreeView.vb
@@ -1785,7 +1785,7 @@ Public Class ToolTreeViewItem
             If Not IsNothing(m_Diam) Then
                Dim dDiam As Double = 0
                StringToLen(m_Diam, dDiam)
-               If dMaxMat > (dDiam / 3) + EPS_SMALL Then
+               If dMaxMat > ( 0.35 * dDiam) + EPS_SMALL Then
                   m_MaxMatError = EgtMsg(MSG_TOOLSERRORS + 17)
                End If
             End If