How would you use a torque wrench on a bottom bracket with an adjustable cup (pin spanner style) and a lockring? How would you hold the adjustable cup? The lockring wrench doesn't have any way to measure torque, and I would say I can get it just as tight with the vice grip. That being said, I do have a lockring wrench, and do use it, but you could avoid it for a few times a year bottom bracket overhaul.