Broke when I used them on some 12awg wire.
919732
These really worked great for a while, but when I used them on some 12awg something inside snapped and that was that.  So, might be good for the casual home user ans smaller gauge wire, but for serious work, get something sturdier.
4671130
I put them on my fence. Within a few weeks the slim cord broke off the sensing unit.
3531712
The wire linked and broke the first time I used mine.
1541221
I have used a few dozen of these GB clamps and in various sizes and they all split over time (less than a year) even in a household ambient environment.  The splits usually occur across the loop though some have split and severed along the base near the mounting flange.  Note that the loop was not under interior stress either; meaning that they were used to clamp data wire and all had an air gap within the closed loop.

I recommend using nylon instead of these plastic clamps, you will be glad you did.
831546
A wire broke after two uses. Replaced with headyer wire and better solder joints
4166729
sorry they broke as  was trying to put them in my ear the part to the lever back broke off sory earings made to thin omly happened to 1 earring I contavked amazon and are sending them back for a refund please let me know when you receive them thankyou
1474057
I used 18 gauge wire and it did not work well.  It is such a small wire gauge that it was difficult to get the pin to hit the wire and then the pin is too large relative to the wire diameter.  Because it is so big it stretched the wire and broke strands. Cut and solder is a much more reliable connection
449414
These bits seemed like nice quality and held up well for lighter duty tasks on my car, but when I had to use the 10mm 3/8" socket to put 148 lb/ft of torque on a suspension bolt, it snapped before I got to the required level of torque.  I'll keep the smaller sizes around, but a better quality brand may be necessary for high torque applications.  Seems like the skinny shaft relative to the actual bit is a weak point.
442350
I tested (4) of these in a rack using a Cisco 3850 switch (1u, 17.6 lbs). After 2 months we found the rack studs snapped off dropping the switch. Cool idea, but a risky proposition long term in my opinion. These may be ok for wire management in a rack, but our use showed that they failed under a 5lb/rack stud after only 60 days. Poor show.

Good luck if you choose these.
3942295
These are NOT military grade. Within a minute of opening the package revealed these are cheaply made and easily break. I bought these to secure lighter items to my roof rack. Pulling the hook around the roof rack tubing with a small amount of force broke the tips off the hook. Before you ask, the inner  diameter of the hook is exactly that of the outer diameter of the tubing so this should've worked without a hitch. The slight inward bend on the last segment of the hook is where it snapped like a twig.
1987572
As I was screwing them in to the studs, the prong snapped off. The screw also going in to the wheel of the pilot also stripped. Very soft metal. I would not  purchase .
696871
The part where the wire is inserted broke the first time my son used it.  I need to return it.
1447160
Really brittle metal. Was squeezing a 24 ga coil a bit too hard and the one jaw just broke off. I wasn't using that much force. Used then for only about a week, before they broke.
4464771
These were used for detailing a wood cosplay scabbard and the dome actually cracked on over 1/2 of them when I tapped them in even though I had predrilled holes for the stem. I would NOT buy these again
4664445
They're great for smaller wire to do a better job at compressing coils evenly.  If this all you do it's perfect.  First time I tried these on a 24g fused clapton, they broke.
3632925
This item is not a good option for stripping wire.  There are tabs on each end which broke the very first use.
17352
It broke on me after just a few uses. It was very hard for me to cut to adjust length with my wire cutters. I was jumping outside and one of the screws that secures the rope to the handles flew off into grass/bushes and I searched and searched and could not find it. Rendering the rope useless. Spend a little more and get a better jumprope.