I purchased this CDI 3/8" when I was rebuilding my N54. This allowed me to torque everything including the VANOS and crank hub bolt with the exception of some smaller bolts that were below 10 fb-lb. But in my opinion on at torque that small, I believe "guttentight" works just fine. Basically, with a lot of the critical bolts ending up torque to yeild, most of your torque ends up coming from the degree measurement after your initial torque. In this case you either buy a fairly expensive one that does degrees for your or like I did, buy a decent wrench and do the degrees yourself.
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