Male/female extension.
0.78" unthreaded and 1.93" OD.
These have the same 1.25" ID as most other MHS parts.
All MHS parts should have the threads wiped clean and then lightly oiled or greased. We sell some
Synthetic Grease for this. Parts that get stuck because no oil/grease was used or that are damaged by the user trying to take them apart will not be warrantied.