diff --git a/src/Mod/Part/Gui/CommandSimple.cpp b/src/Mod/Part/Gui/CommandSimple.cpp
index fc67eeb8f..a4c78e42d 100644
--- a/src/Mod/Part/Gui/CommandSimple.cpp
+++ b/src/Mod/Part/Gui/CommandSimple.cpp
@@ -74,11 +74,11 @@ void CmdPartSimpleCylinder::activated(int iMsg)
                       ".Shape=Part.makeCylinder(%f,%f,"
                       "Base.Vector(%f,%f,%f),"
                       "Base.Vector(%f,%f,%f))"
-                     ,dlg.radius->value()
-                     ,dlg.length->value()
-                     ,dlg.xPos->value()
-                     ,dlg.yPos->value()
-                     ,dlg.zPos->value()
+                     ,dlg.radius->value().getValue()
+                     ,dlg.length->value().getValue()
+                     ,dlg.xPos->value().getValue()
+                     ,dlg.yPos->value().getValue()
+                     ,dlg.zPos->value().getValue()
                      ,dir.x,dir.y,dir.z);
         commitCommand();
         updateActive();
diff --git a/src/Mod/Part/Gui/DlgPartBox.ui b/src/Mod/Part/Gui/DlgPartBox.ui
index d3824966b..d5ee43f58 100644
--- a/src/Mod/Part/Gui/DlgPartBox.ui
+++ b/src/Mod/Part/Gui/DlgPartBox.ui
@@ -27,7 +27,10 @@
        <number>6</number>
       </property>
       <item row="0" column="1">
-       <widget class="QDoubleSpinBox" name="xPos">
+       <widget class="Gui::QuantitySpinBox" name="xPos">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="minimum">
          <double>-2147480000.000000000000000</double>
         </property>
@@ -44,7 +47,10 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="QDoubleSpinBox" name="yPos">
+       <widget class="Gui::QuantitySpinBox" name="yPos">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="minimum">
          <double>-2147480000.000000000000000</double>
         </property>
@@ -54,7 +60,10 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="QDoubleSpinBox" name="zPos">
+       <widget class="Gui::QuantitySpinBox" name="zPos">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="minimum">
          <double>-2147480000.000000000000000</double>
         </property>
@@ -107,7 +116,10 @@
        <number>6</number>
       </property>
       <item row="2" column="1">
-       <widget class="QDoubleSpinBox" name="wLength">
+       <widget class="Gui::QuantitySpinBox" name="wLength">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="maximum">
          <double>2147480000.000000000000000</double>
         </property>
@@ -117,7 +129,10 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="QDoubleSpinBox" name="vLength">
+       <widget class="Gui::QuantitySpinBox" name="vLength">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="maximum">
          <double>2147480000.000000000000000</double>
         </property>
@@ -127,7 +142,10 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="QDoubleSpinBox" name="uLength">
+       <widget class="Gui::QuantitySpinBox" name="uLength">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="maximum">
          <double>2147480000.000000000000000</double>
         </property>
@@ -170,6 +188,13 @@
   </layout>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
+ <customwidgets>
+  <customwidget>
+   <class>Gui::QuantitySpinBox</class>
+   <extends>QWidget</extends>
+   <header>Gui/QuantitySpinBox.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>xPos</tabstop>
   <tabstop>yPos</tabstop>
diff --git a/src/Mod/Part/Gui/DlgPartCylinder.ui b/src/Mod/Part/Gui/DlgPartCylinder.ui
index 260e130e2..7a932d05d 100644
--- a/src/Mod/Part/Gui/DlgPartCylinder.ui
+++ b/src/Mod/Part/Gui/DlgPartCylinder.ui
@@ -62,7 +62,10 @@
        </widget>
       </item>
       <item row="2" column="1">
-       <widget class="QDoubleSpinBox" name="zPos">
+       <widget class="Gui::QuantitySpinBox" name="zPos">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="minimum">
          <double>-2147480000.000000000000000</double>
         </property>
@@ -72,7 +75,10 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="QDoubleSpinBox" name="yPos">
+       <widget class="Gui::QuantitySpinBox" name="yPos">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="minimum">
          <double>-2147480000.000000000000000</double>
         </property>
@@ -82,7 +88,10 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="QDoubleSpinBox" name="xPos">
+       <widget class="Gui::QuantitySpinBox" name="xPos">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="minimum">
          <double>-2147480000.000000000000000</double>
         </property>
@@ -121,7 +130,10 @@
        </widget>
       </item>
       <item row="1" column="1">
-       <widget class="QDoubleSpinBox" name="length">
+       <widget class="Gui::QuantitySpinBox" name="length">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="maximum">
          <double>2147480000.000000000000000</double>
         </property>
@@ -131,7 +143,10 @@
        </widget>
       </item>
       <item row="0" column="1">
-       <widget class="QDoubleSpinBox" name="radius">
+       <widget class="Gui::QuantitySpinBox" name="radius">
+        <property name="unit" stdset="0">
+         <string notr="true">mm</string>
+        </property>
         <property name="maximum">
          <double>2147480000.000000000000000</double>
         </property>
@@ -153,6 +168,13 @@
   </layout>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
+ <customwidgets>
+  <customwidget>
+   <class>Gui::QuantitySpinBox</class>
+   <extends>QWidget</extends>
+   <header>Gui/QuantitySpinBox.h</header>
+  </customwidget>
+ </customwidgets>
  <tabstops>
   <tabstop>xPos</tabstop>
   <tabstop>yPos</tabstop>
diff --git a/src/Mod/Part/Gui/DlgPartCylinderImp.cpp b/src/Mod/Part/Gui/DlgPartCylinderImp.cpp
index ae926ff70..c6e829668 100644
--- a/src/Mod/Part/Gui/DlgPartCylinderImp.cpp
+++ b/src/Mod/Part/Gui/DlgPartCylinderImp.cpp
@@ -39,9 +39,6 @@ using namespace PartGui;
 DlgPartCylinderImp::DlgPartCylinderImp(QWidget* parent, Qt::WindowFlags fl)
   : Gui::LocationInterface<Ui_DlgPartCylinder>(parent, fl)
 {
-    QList<QDoubleSpinBox*> list = this->findChildren<QDoubleSpinBox*>();
-    for (QList<QDoubleSpinBox*>::iterator it = list.begin(); it != list.end(); ++it)
-        (*it)->setDecimals(Base::UnitsApi::getDecimals());
 }
 
 /*