12vdc Cigarette Lighter Plug to Bolt Tap Adapter

When I was a kid, my dad brought home a set of Craftsman battery powered yard tools (weedeater, hedge trimmer, blower). Back then, battery powered tools were just coming out and these used an external battery pack. The pack was a hard case with a handle, a shoulder strap, a charging jack and a cigarette lighter socket, into which you would plug the power tools. They built things to last back then. My dad is passed, but I still have the tools and one of the battery packs. After replacing the inte