Seems pretty heavy duty. Works well and comes in handy.
This tool is truly a lifesaver, I use it weekly with my impact, drill and ratchet and and has yet to let me down in any way shape or form!!!
It made my work much easier. I can now use my impact instead of normal hand tools. I can not speak to the long term durability but the 4 times I have used it the tool seems great.
It makes everything easier to reach. This extension makes life so much easier when working on farm equipment, automotive projects and the wife's craft room! It gets into hard to reach areas and keeps from getting bloody knuckles or damaging equipment.
Works in situations where your trying to figure out how to get that bolt or nut loose cause what your doing is taking too long, and then you remember you have this thing and it works how you thought it would.