Starrett Steel Automatic Center Punch with Adjustable Stroke - 5-1/4 Length, 11/16 Punch Diameter, Lightweight, Knurled Steel Handle - 18C

I figured out that to get the punch to reset after each punch, the rear cap had to be unscrewed almost all the way off. (Yes, Im working with steel.) I currently have the cap taped to the body of the tool so its position doesnt change. The video didnt help. My 20 year old tool started not resetting, which is why I bought a new one. If you fiddle around with the tip after each punch, it sometimes resets. I expected a better tool for the price.

I have only used this punch on mild steel and within two months the point has become very dull. I suspect a hardening issue. Not what I thought I was getting when I bought a Starrett. Otherwise it seems nice.

Great for starting holes in the exact spot you want. This bad boy pits a sizeable divot in the metal and there is no bit wondering. Extremely hard to push though on the stiffest setting. The usual Starrett quality youd expect. Im a happy buyer.

It is good, but we have to exert a much greater push to make a blow with this. But the impact of it’s blow is too higher to make a deep point hole. One this to note is that, there are two springs inside a heavy spring at the back and a light spring at the pointed side. The light spring is narrowing towards one side and widening towards other side which we can put only in one way. The wider part of the little spring must be kept back, if you taken that spring out otherwise it will not work. You can also blow with a hammer at the backside in order to make it to blow, if you are unable to push too much pressure. No problem because it is too hard.

Starrett is one of the great names in American precision measuring and tooling products, and this Automatic Center Punch is no exception. A few years ago, they changed the design of the center punches where the shank and the tip are unitized, meaning you have many more opportunities to sharpen the tip before you require a replacement. Its not as elegant as the original design, but it is more robust, and has one less part to worry about(the replaceable tip) I now have the 18C, and have the original 18A and 18AA. This is by far the heaviest duty unit of the three, and will likely get the most use. It is adjustable, however, even the lightest setting is still quite hard, so if you are working with soft metals or thin gauge stock, you will likely want to use the 18A or 18AA. This one is perfect for my use, and I will now be selling off my General automatic center punch, which takes significantly more pressure to activate and doesnt hit nearly as hard.

For some reason, mine wasnt firing properly when I first got it. I was about to return it, but decided to open it up, clean it and put it back together first just to make sure there wasnt something hanging it up. Nothing obvious noted when it was apart, but when I put it back together it worked fine, and has ever since. Oddball issue, but overall Im very happy. This thing is typical Starrett quality - built like a tank.

This marking punch packs a wallop. It leaves a deep centering mark in the hardest steel. A great tool.

I live on the Gulf coast in Texas and everything rusts if you dont keep it indoors or slather it in grease. This punch got left outside for almost two months by accident but NO RUST! Thats a big selling point for me. Punch is adjustable but I like deep divots so always use it at max pressure on steel or aluminum. On aluminum it makes a nice ding. On cold-formed steel like a metal building structure its just making an average ding, which was disappointing to me. Admittedly thats work-hardened steel but I did hope it would make a good deep dent. For mild steel the ding is good enough to center a 1/8 bit with one punch, though I usually double or triple punch everything anyway. On aluminum one punch is plenty. It feels too expensive for the difference in performance compared to the $2 HFT punch, and I still find a solid punch and a hammer does far better. However, its more convenient to use an automatic punch particularly in small spaces, plus I already own it, so Ill keep using it. Would I buy it again? Probably not. For reference, I do a lot of metal work but its all for personal enjoyment and not as a tradesman using it for a living.

Yeah, this is the real deal, probably the BEST auto punch I have ever used. If you always wanted a PUNCH that could handle just about any gauge metal you throw at it, this is it. It certainly is not cheap, but is high quality. One thing though: when set to full strength impact, you better eat your Wheaties cause it aint for the faint of heart to push down hard enough to make it fire. Takes some muscle and multiple uses can hurt your palm. Just sayin. If you dont need this much power, get a lower powered punch.

Been using these punches for decades at work. Needed some better punches at home so I went straight for these. Expensive compared the Chinese alternatives but there really is no comparison. If you appreciate nice tools and need a power punch, look no further.