Youll never be able to find one that suits all... Ive got 3, 2-24Nm, 19-120Nm and 40-210Nm.. I think those cover it all...
And that can be a PITA... I didnt realize it when i bought my 19-110 wrench, but that one is 3/8.. So now ive got 1/4, 3/8 and 1/2.. So a good adapter-kit can also be a good thing to consider...You also should consider what size you need.1/4" is good for small bolts and bolts that are not easy accessible like engine bolts etc.1/2" is good for larger bolts wheels,axle etc