diff --git a/nhf/parts/handle.py b/nhf/parts/handle.py
index 5a61bed..19fe15a 100644
--- a/nhf/parts/handle.py
+++ b/nhf/parts/handle.py
@@ -6,7 +6,10 @@ from typing import Union, Optional
 import cadquery as Cq
 import nhf.parts.metric_threads as metric_threads
 
-class TubeJoint:
+class Mount:
+    """
+    Describes the internal connection between two cylinders
+    """
 
     def diam_insertion_internal(self):
         """
@@ -26,7 +29,7 @@ class TubeJoint:
         """
 
 @dataclass
-class ThreadedJoint(TubeJoint):
+class ThreadedJoint(Mount):
 
     pitch: float = 3
 
@@ -59,7 +62,7 @@ class ThreadedJoint(TubeJoint):
             length)
 
 @dataclass
-class BayonetJoint(TubeJoint):
+class BayonetMount(Mount):
     """
     Bayonet type joint
     """
@@ -81,7 +84,7 @@ class Handle:
     diam: float = 38
     diam_inner: float = 33
 
-    joint: Optional[TubeJoint] = field(default_factory=lambda: ThreadedJoint())
+    joint: Optional[Mount] = field(default_factory=lambda: ThreadedJoint())
 
     # Internal cavity diameter. This determines the wall thickness of the connector
     diam_connector_internal: float = 18.0