Countersinking finishing nails
Is there some trick to this? I slip off the nail and punch new holes in the woodwork, or hit my hand with the hammer. I bang and bang and bang but the nail doesn't budge (especially when it's in a stud). I even bent my counterpunch (the smaller one of a threesome set) the other night. I try to hold the punch very stright and push it a bit into the nail to keep it in place. But still it slips. I don't know whether to focus my eyes on the hammer (to avoid hitting my hand) or on the wall (to avoid the punch slipping off the nail) and I can't do both at once.
What's the secret?