diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index 46fab69..7d9370c 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -553,7 +553,7 @@ local function VerifySideMillAsSaw( Proc, nAddGrpId, vtN, dDiam, dFacElev)
    -- cancello la copia del percorso
    EgtErase( nTestId)
    -- eseguo test
-  if not bNewIsU and not Proc.TopologyLongName == 'Rabbet-Through-RightAngles-Parallel-2' then
+  if not bNewIsU and not ( Proc.TopologyLongName == 'Rabbet-Through-RightAngles-Parallel-2') then
      return false
   end
    -- Verifico sia abbastanza lunga
@@ -6120,7 +6120,7 @@ local function MakeMoreFaces( Proc, nPhase, nRawId, nPartId, dOvmHead, bSinglePa
                   -- per rifinire gli angoli premio utensile diam 25 o da BD
                   dDiam = min( 2 * dDiam + 10 * GEO.EPS_SMALL, BD.MAXDIAM_POCK_CORNER)
                else
-                  dDiam = 3 * dDiam
+                  dDiam = 6 * dDiam
                end
             end
             sMchFindBackUp = sMchFind