I do car electronics for a living and I had a different set of these i had bought at home depot which i loved, but unfortunatly i losed them!! So i decided to try to buy a new pair and for some reason home depot or lowes no longer sells them. When i found them on here i was happy, I purchased them. They were shipped to me very quikly which is always nice. I used them for about 3 weeks and the worked fine. One day im workin i pick them up and go to strip a wire and i notice 1 of the clamps will not clamp the wire, and gets stuck open so evertime i go to strip a wire i have to click the clamp back into place. I finally figured out that one of the screws had fell out and i have no clue where it went so basiclly there useless till i can track do a screw that will fit them.