diff --git a/EGkCAvToolSurfTm.h b/EGkCAvToolSurfTm.h
index e4f43b9..973d7f3 100644
--- a/EGkCAvToolSurfTm.h
+++ b/EGkCAvToolSurfTm.h
@@ -31,6 +31,8 @@ class __declspec( novtable) ICAvToolSurfTm {
       virtual bool SetMoveDir( const Vector3d& vtMove) = 0 ;
       virtual bool SetStdTool( double dH, double dR, double dCornR) = 0 ;
       virtual bool SetAdvTool( double dH, double dR, double dTipH, double dTipR, double dCornR) = 0 ;
+      virtual double GetToolRadius( void) = 0 ;
+      virtual double GetToolHeight( void) = 0 ;
       virtual bool TestPosition( const Point3d& ptT, const Vector3d& vtDir, double& dTotDist) = 0 ;
       virtual bool TestPath( PNTULIST& lPntM, const Vector3d& vtDir, double dLinTol) = 0 ;
 } ;
diff --git a/EgtNumUtils.h b/EgtNumUtils.h
index 08634db..ab5ec75 100644
--- a/EgtNumUtils.h
+++ b/EgtNumUtils.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2016-2016
+//  EgalTech 2016-2018
 //----------------------------------------------------------------------------
-// File : EgtNumBase.h       Data : 05.11.16         Versione : 1.6w1
+// File : EgtNumUtils.h       Data : 05.11.16         Versione : 1.6w1
 // Contenuto : Funzioni numeriche di base.       
 //
 //