Hmm...I can't seem to be able to upload the DWG or DXF file for my collar here, so I'll describe it. Please e-mail me for the ACAD.DWG or .DXF file for more details.
This is a steel collar 9.130" long, with 2 OF dimiensions. The larger OD is on either end, 0.8442" typical over the outer 2.0"...