Question about roll pins

[Colt46]

I have a Super Blackhawk that I would like to replace with something a little more exotic. It requires that I remove the roll pin so I can drill through the hole for a perfect fit of the new ones. I've been told I need to use roll pin punches so as not to bugger up the job. Is there a standard size that I should be looking for? Is there a specific kit I should get as a ruger owner?
Thanks

 

[Scorch]

There are hole marking punches made expressly for marking the locations of holes.

 

[45Colt_Man]

Brownells has a nice kit or you can buy individual punches.

http://www.brownells.com/.aspx/pid=5551/Product/ROLL_PIN_PUNCHES

Dana

 

[waterfowler]

Brownells has a nice kit or you can buy individual punches.

I agree!

 

[brickeyee]

It requires that I remove the roll pin so I can drill through the hole for a perfect fit of the new ones.

Roll pin holes should be reamed to size.

Drilled holes are ALWAYS larger than the drill, by at least a few thousandths.

Reaming produces a much more uniform and smooth hole.