It includes magnets, doesn't require two sets of wrenches the same size, and is said to double as a hex wrench itself. If I wanted a more complete kit though, I'd still have to go with nuts and bolts for the rest, because even the master hex socket sets will skip sizes. I thought using some longer coupling nuts alone might be simplest, except those are limited in size selection also. Perhaps hex steel stock would offer more sizes for a one piece connector.You actually linked another Garagejournal thread lol. A nut and a bolt are generally free and frequently found around a mechanical shop, many times in the trash. I dont know why anyone would buy this kit.
Things like steel stock or a nut and bolt might also prevent a wrench from breaking. Well, if something had to give, then not using the highest grade steel would practically ensure it was the coupler that rounded, before anything broke (but hardware should also hold up, unless the wrench is approaching its breaking point, because much less torque is required at the end of another handle than the working end). I'd guess the primary reason wrenches break there is between nothing else giving out, and the uneven amount of pressure being put on it, from a poor fit where two wrenches alone are coupled.
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When I went to a refinery, one of the first things you pick up on is the wrench on wrench method. I used that successfully for the next twenty four years I was a mechanic at that facility. When you're blanking and de-blanking equipment in the process units and pipelines, this use of wrenches is extremely useful and efficient. Most of the bolting was between 1/2 - 1 1/4", so it was, in most cases, easy enough to carry the required equipment in your tool bag or hoist it up by hand to the job.
