This tool needs enough force to screw you in if you are loosening more than 3 nuts (33mm). But again 1. Cheaper than refilling acetylene oxy-torches2. More portable than acetylene3. Reverse torque is 50% higher than 1" IR-D crank. Bolts on twin wheels (I've never damaged one where the nut wouldn't come back) and saw it in relentless use.