diff --git a/EMkMachiningConst.h b/EMkMachiningConst.h
index a761ebf..81cd31f 100644
--- a/EMkMachiningConst.h
+++ b/EMkMachiningConst.h
@@ -34,7 +34,8 @@ enum MgpType { MGP_NONE =                             0,
                MGP_HOLEDIAMTOLER  =     ( MGP_DOU +  3),
                MGP_EXTSAWARCMINRAD =    ( MGP_DOU +  4),
                MGP_INTSAWARCMAXSIDEANG =( MGP_DOU +  5),
-               MGP_SAFEAGGRBOTTZ =      ( MGP_DOU +  6)} ;
+               MGP_SAFEAGGRBOTTZ =      ( MGP_DOU +  6),
+               MGP_MAXDEPTHSAFE =       ( MGP_DOU +  7)} ;
 
 //----------------------------------------------------------------------------
 // Costanti per tipologia di split arcs