Could not find the model while trying to design a holder. I took the measurements myself with calipers.
Please find the cad model here https://cad.onshape.com/documents/41870211be739355fdb07551/w/229f25f68429b7ca732402db/e/fee4d744dd883a57c9be1be6?renderMode=0&uiState=64c6f12061ac407f7c9d38cc
The author marked this model as their own original creation.