diff --git a/LuaLibs/BeamExec.lua b/LuaLibs/BeamExec.lua
index a2dce21..07a1b06 100644
--- a/LuaLibs/BeamExec.lua
+++ b/LuaLibs/BeamExec.lua
@@ -1991,6 +1991,9 @@ local function VerifyDrillMirrored( Proc, vProc, b3Raw)
    end
    local dToolDoubleDiam = EgtTdbGetCurrToolParam( MCH_TP.DIAM, 'd')
    local dToolDoubleMaxDepth = EgtTdbGetCurrToolParam( MCH_TP.MAXMAT)
+   if ( sType == 'Pocket_AT' or sType == 'Pocket') then
+      dToolDoubleMaxDepth = EgtTdbGetCurrToolMaxDepth()
+   end
    dMachiningDepth = min( dMachiningDepth, dToolDoubleMaxDepth)
    -- recupero la lunghezza della parte inclinata della punta
    local dToolDoubleTipLength = EgtTdbGetCurrToolParam( MCH_TP.TOTLEN) - EgtTdbGetCurrToolParam( MCH_TP.LEN)
diff --git a/LuaLibs/ProcessDrill.lua b/LuaLibs/ProcessDrill.lua
index 7a37621..f797e40 100644
--- a/LuaLibs/ProcessDrill.lua
+++ b/LuaLibs/ProcessDrill.lua
@@ -613,6 +613,7 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
          end
       end
    end
+   local dDepthOri = dDepth
    -- se foro da saltare per eccessiva inclinazione
    if not bTryDrill then
       sMyWarn = 'Warning in drill : too slant hole'
@@ -654,6 +655,9 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
             local dReduceDepth = MIRROR_POCKETS_MIN_DISTANCE / 2 + 10
             dLastStepDepth = dDepth + dReduceDepth
             dDepth = dDepth - dReduceDepth
+            if ( dLastStepDepth > dMaxDepth + 10 * GEO.EPS_SMALL) and ( dMaxDepth <= ( dLen / 2) - dReduceDepth) and ( dDepthOri ~= dDepth) then
+               dDepth = dMaxDepth
+            end
          end
       else
          sUserNotes = EgtSetValInNotes( sUserNotes, 'LastStep', MIRROR_DRILLINGS_MIN_DISTANCE / 2 + 15)
@@ -718,12 +722,12 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
       else
          -- se DrillPocket passante in doppio si fa lavorazione aggiuntiva dell'ultimo step
          if Proc.Double and Proc.Double > 0 and ( sType == 'Pocket_AT' or sType == 'Pocket') and bOpen then
+            if dLastStepDepth > dMaxDepth + 10 * GEO.EPS_SMALL then
+               sMyWarn = 'Warning in drill pocket last step: depth (' .. EgtNumToString( dLastStepDepth, 1) .. ') bigger than max tool depth (' .. EgtNumToString( dMaxDepth, 1) .. ')'
+               return false, sMyWarn
+            end
             local idMachiningLastStep = EgtCopyMachining( EgtIf( EgtStartsWith( sType, 'Predrill'), 'Predrill_', 'Drill_') .. ( EgtGetName( Proc.Id) or tostring( Proc.Id)), sName)
             EgtSetCurrMachining( idMachiningLastStep)
-            if dLastStepDepth  > dMaxDepth + 10 * GEO.EPS_SMALL then
-               sMyWarn = 'Warning in drill pocket last step: depth (' .. EgtNumToString( dLastStepDepth, 1) .. ') bigger than max tool depth (' .. EgtNumToString( dMaxDepth, 1) .. ')'
-               dLastStepDepth = dMaxDepth
-            end
             local dMaxElevLastStep = dLastStepDepth - dDepth
             sUserNotes = EgtSetValInNotes( sUserNotes, 'MaxElev', EgtNumToString( dMaxElevLastStep, 1))
             EgtSetMachiningParam( MCH_MP.DEPTH, dLastStepDepth)