Watch out, it’s a little loud at the end. sorry.
It took a bunch of force to get the second one in. It clearly wasn’t as sharp as the first one. These aren’t new stock, but they are SFS 12-24 Impax 5 (SD5) 1/4″ vs Buildex unknown model 5/16″. Both screws were subsequently and successfully re-used.
I was installing wire hangers onto a trailer and wanted to put a hang point on what happened to be the very thickest portion of the trailer (where the tongue triangle welds to the rectangular portion of the frame. I decided “what the heck, give it a shot” and discovered that these tappers are really badass! Too bad they generally cost so much, but DAMN they’re handy for the heavier work.
Bring on yee industrialization of society!
The extension is to limit torque, it is almost impossible to show this demo on a regular 19mm bolt with very powerful impact unless you can find a stuck crank bolt which can be tough if you are using 1000ft-lbs impact guns. If you would like to see the weight comparison of sockets they are in this video: https://www.youtube.com/watch?v=SGbYcLobC3M .
Here is my homemade 19mm heavy crank pulley bolt impact socket from this video https://www.youtube.com/watch?v=4c5uNnggwZU works great…but sometimes doesn’t work (as shown at end of video) but I read the same with the real crank pulley sockets like the Bluepoint CBSM19 or Lisle 77080 they don’t always work…so sometimes the bolt must be so tight you just need a bigger impact wrench or heat.
But I bet these heavy sockets would help 99 percent of the time unless you have a really weak impact then nothing will help. The lisle is probably made the best because it is one diameter all the way to the front. You could make a heavy socket for ANY size nut or bolt.