What kind of weird space age, Mil-Spec polymer is this thing made of? I'll tell ya - The magic kind! I've grippled hundreds of 1/4 inch cables through G6 gripples with this thing, in the rain, sleet, snow, and 130° summer heat. She never falters. Lost her in a ditch one time for a year and a half, only to find it buried in hard mud. Didn't even hose it off, I just tightened 5 miles of fence braces with it, and it cleaned itself. No problem, squeeze her til she clicks! A cougar surprised me one morning in the tree-line and was sizing me up, I threw this thing at it as hard as I could... no problem. Put it in your fence bucket so you don't forget it. I'll admit to using it in a pinch for a hammer on a staple or 2, but wouldn't advise it. I feel that this tool is thousands of dollars under-priced. -JC