diff --git a/LuaLibs/ProcessDrill.lua b/LuaLibs/ProcessDrill.lua
index 4d3cd9d..534392a 100644
--- a/LuaLibs/ProcessDrill.lua
+++ b/LuaLibs/ProcessDrill.lua
@@ -667,7 +667,7 @@ function ProcessDrill.Make( Proc, nPhase, nRawId, nPartId, dCurrOvmH)
             end
          end
       else
-         sUserNotes = EgtSetValInNotes( sUserNotes, 'LastStep', MIRROR_DRILLINGS_MIN_DISTANCE / 2 + 15)
+         sUserNotes = EgtSetValInNotes( sUserNotes, 'LastStep', MIRROR_DRILLINGS_MIN_DISTANCE / 2 + 10)
       end
       if dDepth > Proc.MachDepthDouble + 10 * GEO.EPS_SMALL then
          sMyWarn = 'Warning in double head drilling : depth (' .. EgtNumToString( dDepth, 1) .. ') reduced to (' .. EgtNumToString( Proc.MachDepthDouble, 1) .. ') to match H2 max tool depth'