On any material softer than mild steel the punch has no problem leaving a mark

Using the default H setting, this center punch made a mark with such force it also made stress marks on the aluminum to be drilled

Opens a nice mark on a normal carbon steel surface

Does a great job marking the drill spot on cabinets enabling a clean hole.

Easy to use, at first I thought that this thing does not work, but after some fidling I was able to find how to tighten the spring, then it goes, it made a good mark on the metal I was going to drill

For 90% of the gargeneers and gearheads looking for a good marking / dimpling tool, this is more than adequate to the job.

this tool is perfect,as a locksmith its great for marking screw and drill holes it powerful and leaves a clear mark on wood and metal, I haven't had an instance to use it on

A manual center punch and a hammer make a far better mark on the metal.

The tip seams to keep its sharpness as it repeatably gives me clean clear punch marks

sharp tip worked on my aluminum sheeting (.25 inch thick) made marks and was able to drill lickity split.

A manual center punch and a hammer make a far better mark on the metal.

For mild steel it definitely makes a punch mark good enough to start a 1/8" or 5/32" HSSbit

Husband put up guide pushed in on the punch twice left a good mark to drill

It leaves a nice punch mark too.

Pros:Makes a mark just about anywhere, used on wood, mild steel, aluminum, even some cobalt steel just as a test

The point was so soft that the first time I tried punching a mark in a piece of steel it dulled out to flat

Spring loaded punch does a great job of leaving a good mark.

Its a little stiff on the hardest setting but it marks holes just

when you push on the red knob, the powerful spring will push the needle very hard to the surface and leave a clear mark, at the same time, you will hear a loud sound like a .22 caliber bullet hit.

They are not suitable for steel plates, the marks they make are very weak.

Makes the perfect mark for your drill bit

On aluminum the punch works well and repeated actions will deepen the mark.

This worked perfectly to get an accurate mark, dead center on each drilling location, every time