I remember a older Service station mechanic telling me that he had calibrated elbows on most tightening he did on cars in that stations bays.
I will use a inch lb. torque wrench and convert the lighter ft. lbs. into inch lbs. like using 23 Ft. Lbs. on 5/16 bolts, 23x12=276 inch lbs. 20x12=240 + 3x12=36. 36+240= 276