The Cyclo Tools Cassette Lock Ring Tool (Campag) has a removable pin for use with hollow spindle. It is heavy-duty, high-quality and durable, with comfortable cushioned handles. Comes with interchangeable heads that are also available separately - For Shimano HG head/Campag lockring head. The Cyclo Tools Cassette Lock Ring Tool Pin Guide made of high quality material. With a replaceable pin for the Cassette Lock Ring Tool Campag. It is heavy duty and long lasting. The Cyclo Tools Cassette Lock Ring Tool (Shimano HG) has a removable pin for use with hollow spindle. The tool has a comfortable, easy to hold, cushioned handle and comes with interchangeable heads. This is an advanced tool used by the professionals but maintaining your bike in a home workshop can add to the enjoyment of owning one.