And, for les than $10 you can buy a set of punches at Harbor Freight.

They go up to 1/2 inch, have the plug expelling slot already in them, and will last a lifetime. The thin 1/8 and 3/16 inch ones work great for tails on dragonfly/damsel fly patterns, 1/4 inch and up for ants/hoppers/poppers.

I like to use a drill press, but they work just fine in a hand drill.

Buddy