I do mine on a lathe, using the tailstock chuck to hold a 1/16" drill bit to make the center hole, then a V-block on a drill press table to intersect with the center hole. If you're careful with the setup, both holes can be done on the drill press. Don't forget to grind a slot across the head so it can be identified easily in the future.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!