Starrett Automatic Center Punch with Hardened Steel Metal - 100mm Length, 11mm Punch Diameter Tapered Point - 18AA

Read the bad reviews. These things seem to have some manufacturing issues. Specifically, the spring over the point seems a bit weak and the things arrive internally dirty with a poor internal finish on parts that slide. However, its easily repairable and just using the unit to break it in will help a lot. Heres how to get it going again. Unscrew the point end and carefully remove the pin, spring and point. Make sure to notice how things are laid out. Clean each component, remove any debris, clean the threads, Use a good lubricant on everything. I like using a dry Teflon type that wont attract dust and dirt. Next, unscrew the top. Careful as there is a spring in there. Now you have to remove the slid inside the top half. Just push it out the top. I used a can of compressed air to blow it out, but a small paper clip would also work I believe. Clean it and the tube. Q-tips are your friend here. Lubricate as above and reassemble. And use it. Wear it in. Youll have to play with the point end adjustment a little, just unscrew half a turn and put back. Itll get smoother and more reliable. Note that on the point end, the point drops in first, then the pin (flat side toward point) and the spring goes on the pin. The smaller end of the spring goes onto the pin first.

I had to return this for a replacement. Half the time, the spring would not rest after triggering. The replacement (same make/model) is great -- heavy, precise, and reliable.

Commercial hollow metal door layout and prep

It arrived early and workswell. The adjustable punch is great depending on the material youre trying to mark and the size if impression.

Took me a while to decide to spend the money for this center punch. It is a lot more expensive than the cheap Chinese products sold under different brand names. I cant compare this Starrett to the other products since I only have this one. The Starrett seems to be of the high quality expected from this brand - and the price tag. It malfunctioned a couple of times at the beginning but probably due to some burrs left from the manufacturing process. It works well now, did not have any more issues.

Was too weak to produce a dimple in the metal sheet I wanted to drill.

High quality center punch, USA made, type of tool that will last generations

Product quickly arrived as promised. This small punch makes a tiiiiiny indention, enough for a drillbit to lead. I do wish was more potent and made a larger indention in sheet metal.

Good for woodworking, even on softer woods. Sometimes takes a couple punches to make the size of hole that I want but given how easy it is to use this isnt really a con, just press up and down a couple times. It works on metal too but obviously if you are primarily doing metal working this probably wont be heavy duty enough.

It is smaller than I expected. It works well but I wish I would have gotten the 18c. It would have been a little bit bigger and punched a little bit harder. All in all a very high-quality product!