Super Strong Automatic Center Punch - 6 inch Black Steel Spring Loaded Center Hole Punch with Adjustable Tension, Hand Tool for Metal or Wood with Zippered Hard Shell Carry Case - Pack of 2

Seem to be heavy duty, work like they should.

I guess these are great for their intended mechanical purpose, but the automatic center punches are absolutely the best and easiest way to rescue somebody (or a pet) from a locked vehicle. Press these against the vehicle's window, and POP! - no more window! No more repeated banging on the window with a nightstick, flashlight, rock, or your partner's head. One instantaneous motion and you're done. I've carried one of these in my patrol car for decades. These are for my personal cars, but for the same reason. As an aside, I showed one of these to my captain. He thought it was cool, and before I could stop him he popped the corner of his glass desk top with it. The entire desk top instantly shattered into thousands of pieces. He stood looking at it for a few moments and said, 'Well it certainly does the trick. I'll have to get one.".

I bought these to install a spoiler, and they didn’t let me down. They have some good weight to them and feel very high quality. This will be in my tool box for a long time.

I was very happy with them, they work well but have to double punch with them. I had a smaller one but it hurt my hand so I’m happy these are a bit bigger.

I just got these delivered and had to leave a review. These are top quality. They come with a very nice holder and nice foam insert. They even gave me some cool stickers too. I'm going to see what else they sell now that I've seen the quality. Definitely buy these!

When these arrived, one of the punches didn't work at all. The one that does work is pretty hard to use, but they do work as described.

Would be more useful if one was a bit smaller.

I've decided to write my first Amazon review due to how spectacularly bad this product is. Both centerpunches were completely non functional out of the box. One of them was completely jammed which indicates that they are not tested AT ALL at the factory.I opened them up to see what was wrong. I was blown away by how much was wrong:-One of the parts was assembled backwards in one of the centerpunches. after I fixed that, it still didn't work.-The finish of the internal parts is so rough that they constantly catch on each other preventing the mechanism from working. They look like they were made by the world's cheapest lathe and were not sanded or polished at all.-One of the main springs was very bent which prevented it from being fully compressed.Even after I sanded the heck out of the parts and drenched the inside with WD-40, it still only worked maybe 10% of the time I compressed it. To add even further insult to injury, the force of a successful punch would cause the parts to get jammed, requiring disassembly to unjam.I cannot think of any product I've used that was anywhere near as bad as this one. Everything indicates that quality control for this product simply does not exist; they don't test these at all. All it would take to discern my copy was broken would be to test it just once. This is literally the worst thing I have spent money on in my entire life.That is not hyperbole. I cannot think of anything else that was this dysfunctional.