diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0172353..8f8214dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ CHANGELOG for FlatCAM beta
 
 =================================================
 
+26.02.2021
+
+- fixes in Drilling & Milling Tools for the error: "RuntimeError: wrapped C/C++ object of type ... has been deleted"
+
 13.02.2021
 
 - fixed a bug in Transform Tool when calculating the point reference
diff --git a/appTools/ToolDrilling.py b/appTools/ToolDrilling.py
index c840a578..617b82bc 100644
--- a/appTools/ToolDrilling.py
+++ b/appTools/ToolDrilling.py
@@ -176,9 +176,10 @@ class ToolDrilling(AppTool, Excellon):
             if self.app.ui.splitter.sizes()[0] == 0:
                 self.app.ui.splitter.setSizes([1, 1])
 
+        self.set_tool_ui()
+
         AppTool.run(self)
 
-        self.set_tool_ui()
         self.on_object_changed()
         # self.build_tool_ui()
 
diff --git a/appTools/ToolMilling.py b/appTools/ToolMilling.py
index 07dccb01..616de055 100644
--- a/appTools/ToolMilling.py
+++ b/appTools/ToolMilling.py
@@ -175,10 +175,10 @@ class ToolMilling(AppTool, Excellon):
             if self.app.ui.splitter.sizes()[0] == 0:
                 self.app.ui.splitter.setSizes([1, 1])
 
-        AppTool.run(self)
-
         self.set_tool_ui()
 
+        AppTool.run(self)
+
         # reset those objects on a new run
         self.target_obj = None
         self.obj_name = ''