Making Scales Was a Total Failure Today...

[AimlessWanderer]

One trick I have heard of, is using the hole reinforcement stickers that you use on notepads for ringbinders. A couple of those popped over the pin will cushion any wayward strikes, and help protect the scales. Also, make sure there's a little clearance in the drilled hole. If the pin spreads within the scale as you're peening, that could cause problems if it's near a size on size fit.

 

[GAW9576]

I use a the head only the handle was missing when I got it, of a small hammer I believe was used for upholstery. It had a flat head but I ground it to a ball peen shape and polished it to near mirror finish. I find for me I've got much more control holding it with no handle and use very litght taps.

 

[Chan Eil Whiskers]

I have this hammer. Link.

 

[GAW9576]

Can't find mine right now, but it's basically this without the handle and ground to a ball peen on the end. Very easy to see what you are hitting because of the small diameter.