I made these as a better use especially as if they break than timing belts, with a 3”inch socket on a toque wrench we maxed the wrench out at 280 ft lbs, its doesn’t mark so been used for bath taps,oil filters, sprayer hose connectors,exhaust pipes and all-sorts of funny shaped things that need turning, since I started making them altered to be able to get into restricted places, welded nut on top and cut handle off.