diff --git a/FlatCAMObj.py b/FlatCAMObj.py
index 2291e951..9ad52429 100644
--- a/FlatCAMObj.py
+++ b/FlatCAMObj.py
@@ -2353,6 +2353,7 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
 
             geo_obj.options['Tools_in_use'] = tool_table_items
             geo_obj.options['type'] = 'Excellon Geometry'
+            geo_obj.options["cnctooldia"] = float(tooldia)
 
             geo_obj.solid_geometry = []
 
@@ -2447,6 +2448,7 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
 
             geo_obj.options['Tools_in_use'] = tool_table_items
             geo_obj.options['type'] = 'Excellon Geometry'
+            geo_obj.options["cnctooldia"] = float(tooldia)
 
             geo_obj.solid_geometry = []
 
diff --git a/README.md b/README.md
index 3c1b5141..b1953abc 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,10 @@ CAD program, and create G-Code for Isolation routing.
 
 =================================================
 
+19.06.2019
+
+- milling an Excellon file (holes and/or slots) will now transfer the chosen milling bit diameter to the resulting Geometry object
+
 17.06.2019
 
 - fixed bug where for Geometry objects after a successful object rename done in the Object collection view (Project tab), deselect the object and reselect it and then in the Selected tab the name is not the new one but the old one