ALLY Tools Super Strong 6 Inch and 5 Inch Heavy Duty Automatic Center Punch, Perfect Automatic Center Punch for Metal, Wood, Plastic, Glass, and Marble – Features Spring Loaded Center Punch Design

These center punches were purchased for use around the home. I do not know how they would perform for commercial use but the price and function are satisfactory for me.

These look and feel a little rough, but theyll do the job. Out of curiosity, I took apart an old Starrett punch and found the springs to be interchangeable with the smaller punch in this set - so if youve got a similar old center punch with tired springs, this will rejuvenate it, and you get an extra larger punch to boot. Nothing wrong with these as they are though, especially for the price paid. I havent used them on an actual project yet, but they hit hard for sure, I expect them to work great for centering drill bits in metal. I havent tried breaking glass, but cranked down all the way I bet they would.

Nice punch with a strong spring and accurate centering

These look and feel a little rough, but theyll do the job. Out of curiosity, I took apart an old Starrett punch and found the springs to be interchangeable with the smaller punch in this set - so if youve got a similar old center punch with tired springs, this will rejuvenate it, and you get an extra larger punch to boot. Nothing wrong with these as they are though, especially for the price paid. I havent used them on an actual project yet, but they hit hard for sure, I expect them to work great for centering drill bits in metal. I havent tried breaking glass, but cranked down all the way I bet they would.

My first product was defective and I tried to remedy it by oiling it. It does improve but still not well enough. I contacted the seller and the seller was friendly and helpful. Once found that my product is defective, seller send replacement very quickly. New product arrived perfect from Amazon warehouse. It works out of the box and I really like the adjustable tension.

worked just fine

verry weak springs

I didnt expect much for the price, but when it arrived half- ass assembled and unable to adjust, its kinda worthless. Its just a cheap one time use punch now!

My first product was defective and I tried to remedy it by oiling it. It does improve but still not well enough. I contacted the seller and the seller was friendly and helpful. Once found that my product is defective, seller send replacement very quickly. New product arrived perfect from Amazon warehouse. It works out of the box and I really like the adjustable tension.

Not what i expected. The smaller one doesn’t work ok.