2Pcs Heavy Duty Automatic Center Punch, 5 Premium Steel Spring Loaded Center Hole Punch, Adjustable Spring Impact Center Marker Scriber Tool for Metel, Plastics, Wood, Glass by karmiero

I dont think these are fully stainless steel, but thats somewhat expected at this price point. Both of my punches work as intended and require a pretty average amount of pressure to fully engage the punch. I havent tried messing with the spring intensity yet because there was no need, but you should be able to make it firmer or softer depending on your application. Just based on the price I doubt these will last a long time but worst case I have a couple backup/throw away punches as needed.

These are like other import automatic center punches Ive used. Fits nicely in the hand. The punch is a bit wobbly in the handle, but it gets the job done. Its made of carbon steel, not SS. There is no real spring tension adjustment, it just screws apart and back together. Not sure what youd need to adjust the tension for, anyway. Two of these cost less than the sales tax on the premo US made one these are made to look like. No comparison, of course, but I used one of them to make multiple dimples in a sheet metal plenum for the center pivot of a compass so I could mark take-off holes. It did the job just fine.

I like how good they worked

Doesnt work like it suppose to . Cheap made and no good to me !

After 1-2 week of use.

It malfunctioned on 3rd use, not sure how long it will last.

This offer was for 2 identical punches at a low price. Very handy to have in 2 different locations. I dont know how long they will last, time and use will tell.

IF yours doesnt punch holes, you have to open up the front part and change the direction of the spring. The spring that is closest to the hole punch part. For some reason the spring I received way put it backwards so it was catching on the mechanism inside and not pressing into the whole fully.

IF yours doesnt punch holes, you have to open up the front part and change the direction of the spring. The spring that is closest to the hole punch part. For some reason the spring I received way put it backwards so it was catching on the mechanism inside and not pressing into the whole fully.

The mechanism in both United are very difficult to work. Need to repeatedly press the unit down more than once to have the spring disengage and spring back to make the mark. Is is easier to just use a scribe instead of the center points that I purchased. Not happy with the product unfortunately. Thank you.