diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index a072d6d..ec931bf 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -418,7 +418,7 @@ local function VerifyBHSideMill( Proc, bIsU, bIsL, bSinglePart, bPrevBhSideMill)
 
    -- se non feature BlockHausHalfLap e non abilitato parametro Q per lavorarlo di fianco e non macchina BH esco
    local nUseSideTool = EgtGetInfo( Proc.Id, Q_SIDE_ROUGH_TOOL, 'i') or 0
-   if Proc.Prc ~= 37 and nUseSideTool == 0 and not BD.BH_MACHINE then
+   if Proc.Prc ~= 37 and not BD.BH_MACHINE and ( nUseSideTool == 0 or ( nUseSideTool == 4 and ( Proc.AffectedFaces.Left or Proc.AffectedFaces.Right))) then
       return false
    end
 
@@ -7307,6 +7307,9 @@ function ProcessLapJoint.Make( Proc, nPhase, nRawId, nPartId, dOvmHead)
       if Proc.Prc == 30 or Proc.Prc == 20 then
          local nBladeAntisplint = EgtGetInfo( Proc.Id, Q_ANTISPLINT_TYPE, 'i') or 0
          local nUseRoughToolOnSide = EgtGetInfo( Proc.Id, Q_SIDE_ROUGH_TOOL, 'i') or 0
+         if nUseRoughToolOnSide == 4 and ( Proc.AffectedFaces.Left or Proc.AffectedFaces.Right) then
+            nUseRoughToolOnSide = 0
+         end
          nForceUseBladeOnNotContinueFace = EgtGetInfo( Proc.Id, Q_BLADE_ON_ALONG_FACE, 'i') or 0 
          -- se antischeggia di fresa o abilitato sgrossatore di fianco
          if nBladeAntisplint == 2 or nUseRoughToolOnSide > 0 then