Reduces pipe assembly and disassembly time by 80%. A self-locking, reversible, reversible, internak pipe wrench can be used with ratchets, extenstions and impact/air wrenches. Suitable for installing or removing pipes located in tight spots, extremely hot and rusted tight. It wont’t create knuckles, broken pipes or ruined walls, and won’t scar chromed pipe, can’t damage threads and can remove the most stubborn nipples.