cupped pin punch

[Elroy]

like a cupped tip on a nail set (concaved)
need some straight shank punch with cupped tip. preferably tool steel. kindly recommend.

[nelstomlinson]

Ordinary nail sets have a cupped end, and will do if it happens to match the end of the pin. For Elroy's beautiful guns, probably better get a purpose made set. I'd start by looking in the Brownells catalog.

[pep]

nelstomlinson

Is correct pictured is a set of 3 Brownell

[Uncle Buck]

Please ask Elroy why he needs those? Is he gunsmithing perhaps? I have never seen or heard of those. You guys amaze me.

[pep]

They are called a nail set ....

Example

 https://www.amazon.com/Stanley-58-230-Piece-Steel-Nail/dp/B000BQPGYI/ref=sr_1_5?keywords=nail+set&qid=1698373724&sr=8-5

[Elroy]

Please ask Elroy why he needs those? Is he gunsmithing perhaps? I have never seen or heard of those. You guys amaze me.

Yes indeed Buck. A little table top gunsmithing.

Elroy wanted to upgraded the sights on his Single Six to the Williams fiber-optic. The front blade had a simple screw attachment. The adjustable rear sight was a more complicated and required the removal of the 1/16 diameter "pivot pin" from the frame. That simple task ended up being a real bitch. Ended up breaking the brass drift used initially and ruined the pin !! In the end it all worked out but getting that pin to move took a solid hit from a 12 oz ball peen. We would have been pissed if the flat face Starrett slipped off and scratched the frame blue. Ideal drift in Elroy's eye would have a straight shank. Inventoried nail sets were too big. 

[skfarmer]

tell old elroy that he has a fine looking side arm. the farmer has one just like with some walnut on the sides. his doesn't have that fancy yeller paint in the engraving either.

[Uncle Buck]

Now that is damned cool! Is that a costly addition? I have an old 357 service six? I think service if memory serves correct. I think the security six had adjustable sights and the service (mine) was fixed sights.