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

Cant say enough good things about this set of spring loaded punches. They work perfectly and like they are supposed to. The knurling provides a nice grip. Both sides can be unscrewed for cleaning and lubrication. You really cannot go wrong with this set. They are an excellent value. I have a Starrett at work that cost ten times as much as these two. They make the same indent on steel as the Starrett does. They even feel the same when used. I would highly recommend these center punches. Extremely useful tool to have on hand.

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

Made a small prick in both aluminum and hard steel. Although I thought it worked fine I believe a slightly stronger spring would improve it. I used it full tension but would liked slightly more resistance for a little deeper hole.

karmiero 2 Pc Automatic Center Punch Remarkably, both of the spring-loaded automatic punches worked the first time. The grip is easy to maintain. First, I tried various types of wood. The pressure to activate the punch is minimal. Each time it scribed a hole mark. I then went to metals such as aluminum and steel. The steel required spring adjustment to get a good visible hole. The punch never slipped and was accurate. The tools are easy to assemble and disassemble. Well manufactured, and no detectable flaws. Excellent value.

I really like these centering punches. Ive been working on a project that involves drilling dozens of holes in mild steel. My old punch (another automatic) never left a satisfying dimple to start a drill bit. It would leave a mark to line things us, but it wasnt deep enough to ensure that the bit wouldnt wonder. Well not these punches! The point on these punches is sharp and suepr hard. The spring has a terrific punch to it and is strong enough to get a good start in any metal or wood surface. My drill bits of various sizes were always right on center following the dimple from these punches. Highly recommended.

I bought these on a whim just to see what the spring loaded punch would do. It works fine 90% of the time buy the mechanism needs to be tightened down occasionally or you do not get that crisp punch into the wood.

The tool is inconsistent. I rarely works as intended.

The tool is inconsistent. I rarely works as intended.

This is a nice punch. Would have given 5 stars, but the first time I used it, the punch did not reload. I took the unit apart but found nothing I could see holding the spring. I banged it on the table and the spring released. After reassembling the punch worked perfectly and reset every-time.

Love it