gonna be following this one, got one of the HF sets - used the 3/8 and the 1/2 on mild steel, both times with a 12 oz. ball pein and a "medium" tap, BOTH punches "points" are now rounded over (maybe half dozen holes each).
Hopefully one of the more serious fab guys will respond with something that actually holds up a while... Steve
I have a cheapy set. All I do is make a light tap with the transfer punch and then use a hardened ***** to get a little deeper. Then I drill progressively bigger until I'm satisfied.
I'll try a cheaper set first. I'd hate to drop $100 on punches I don't use often.
I have have been using the Harbor Freight set for around 10 years doing truck upfitter work with no signs of tip deformation,I make a mark with them and then switch to a heavier punch as they are made for.
I have a cheapy set. All I do is make a light tap with the transfer punch and then use a hardened ***** to get a little deeper.
If you don't want to spend much money then state that in the thread so people don't waste their time recommending good made in the USA products, and can point you towards cheap chinese junk.![]()

In the category of "things I didn't know existed but now I want", I was poking around on McMaster.com and found expanding punches
https://www.mcmaster.com/3380a11
Expensive lil' boogers, but if I did a lot of fabrication work...
The issue many times is that you're working with an existing hole rather than one you just drilled. And many times, a hole for, say, a 10mm bolt was drilled to 10.4mm or something like that at the factory for easier assembly. So even if you use a 10mm transfer punch, it's going to be a little sloppy and end up off-center.
Versatility baby!I'll save $70-$80, and use it to buy a couple of Starrett automatic center punches to complement the set.