diff --git a/EgtMachKernel.rc b/EgtMachKernel.rc
index cfd6b76..7c07ad0 100644
Binary files a/EgtMachKernel.rc and b/EgtMachKernel.rc differ
diff --git a/EgtMachKernel.vcxproj.filters b/EgtMachKernel.vcxproj.filters
index 8c0d39e..884c3d5 100644
--- a/EgtMachKernel.vcxproj.filters
+++ b/EgtMachKernel.vcxproj.filters
@@ -249,6 +249,9 @@
     <ClCompile Include="SimulatorMP.cpp">
       <Filter>Source Files\Output</Filter>
     </ClCompile>
+    <ClCompile Include="PocketingNT.cpp">
+      <Filter>Source Files\Operations</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="DllMain.h">
@@ -761,6 +764,9 @@
     <ClInclude Include="Simulator.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="PocketingNT.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="EgtMachKernel.rc">
diff --git a/OperationConst.h b/OperationConst.h
index d7d2d06..84a6102 100644
--- a/OperationConst.h
+++ b/OperationConst.h
@@ -18,7 +18,7 @@
 #include "/EgtDev/Include/EMkOperationConst.h"
 #include <string>
 
-#define POCKETING_NT 1
+#define POCKETING_NT 0
 
 //----------------------------------------------------------------------------
 static const std::string s_OpeClass[] = {"",
diff --git a/PocketingNT.cpp b/PocketingNT.cpp
index 4e9659b..62e9bd4 100644
--- a/PocketingNT.cpp
+++ b/PocketingNT.cpp
@@ -3903,8 +3903,8 @@ PocketingNT::CalcSpiral( const ICurveComposite* pCompo, int nReg, bool bSplitArc
          CalcCurveLimitOffset( *pCompo, dMaxOffs) ;
       else
          CalcCurveLimitOffset( *pOffs, dMaxOffs) ;
-      if ( abs( dMaxOffs - dOffs) < EPS_SMALL)
-         dOffs -= EPS_SMALL ;
+      if ( dOffs > dMaxOffs - 10 * EPS_ZERO  &&  dOffs < dMaxOffs + EPS_SMALL)
+         dOffs = dMaxOffs - 10 * EPS_ZERO ;
 
      // calcolo
       OffsetCurve OffsCrv ;