Power-operated downhole tools made of metal for use in oil and gas wells, namely, tools for removing metal casings used to stabilize the wellbore; Power-operated downhole tools and apparatus for use in oil and gas well intervention and remediation, namely, rotary tools for preparing metal wellbore casings for removal, all being part of metal coiled tubing, metal cable, or metal drill pipe deployed machines; Fishing tools for use in oil and gas wells, namely, grapples, spears, overshots and ja...