Have used the Footprint wrench, and the vulcanising clamps. I had problems back in 1974 when I took a job with BHP at Port Headland, they issued me a tool list and among the items was a Mole Wrench. Went to every tool shop in Sydney and got some very funny remarks, but no wrench or wench. It turned out to be vice grips, and it was a colloquial, name as Mole was a manufacturer same as Crescent Wrench.