Does anyone know a source for a quality "12 point" for the MB Cylinder Head (89 300 CE).

I'm referring to it as a "Torx" but realize that it's not.

I removed the head bolts with a Torx T-55 (6 point) Snap-On Socket but don't want to chance re-installing and torquing the new bolts with a 6 point. I can't seem to find one anywhere. I'll have to possibly have a mechanic friend ask the Snap-On guy for me if I can't find one.

Thanks
Brian