diff --git a/Strategies/Standard/STR0001/STR0001.lua b/Strategies/Standard/STR0001/STR0001.lua
index d420913..ebae145 100644
--- a/Strategies/Standard/STR0001/STR0001.lua
+++ b/Strategies/Standard/STR0001/STR0001.lua
@@ -326,7 +326,7 @@ function STR0001.Make( bAddMachining, Proc, Part, CustomParameters)
 
    -- controllo conformità offset tenone
    Strategy.Parameters.dOverMatOnRadius = EgtClamp( Strategy.Parameters.dOverMatOnRadius, -5, 5)
-   Strategy.Parameters.dOverMatOnLength = EgtClamp( Strategy.Parameters.dOverMatOnRadius, -5, 5)
+   Strategy.Parameters.dOverMatOnLength = EgtClamp( Strategy.Parameters.dOverMatOnLength, -5, 5)
 
    -- calcolo se la lavorazione del tenone può essere spostata dopo taglio di coda
    local dLengthOnX = Proc.b3Box:getDimX()
diff --git a/Strategies/Standard/STR0011/STR0011.lua b/Strategies/Standard/STR0011/STR0011.lua
index 407bf2b..e27e9a7 100644
--- a/Strategies/Standard/STR0011/STR0011.lua
+++ b/Strategies/Standard/STR0011/STR0011.lua
@@ -216,6 +216,9 @@ function STR0011.Make( bAddMachining, Proc, Part, CustomParameters)
    if bAddMachining and Strategy.Result.sStatus ~= 'Not-Applicable' then
       -- aggiunge lavorazione
       for j = 1, #Strategy.Machinings do
+         if Proc.AffectedFaces.bLeft and  not Proc.FeatureInfo.bIsDrillOpen then
+            Strategy.Machinings[j].sStage = 'AfterTail'
+         end
          Strategy.Machinings[j].nType = MCH_MY.DRILLING
          Strategy.Machinings[j].Steps.dStep = TOOLS[Strategy.Machinings[j].ToolInfo.nToolIndex].dStep
          bAreAllMachiningsAdded = MachiningLib.AddMachinings( Proc, Strategy.Machinings[j])
diff --git a/Version.lua b/Version.lua
index 0fefa93..ac2187c 100644
--- a/Version.lua
+++ b/Version.lua
@@ -2,5 +2,5 @@
 -- Gestione della versione di BeamNT
 
 NAME = 'BeamNT'
-VERSION = '3.1g3'
+VERSION = '3.1g4'
 MIN_EXE = '3.1g3'