The tools you referred to for flintknapping are used for two different techniques. The copper bopper is used for percussion flaking (you hit a prepared edge with it), the copper point is used for pressure flaking (You push in and down with it).
Using the brass hex rod as roundball says is percussion flaking on a small scale, and using the step as mentioned by TG and as used by Stumpkiller is a pressure flaking method. I'll sometimes use an antler tine to pressure flake a flint, but it's difficult to do in the lock.
For a flint in the lock I used to use the edge of a musket tool. Now I just hammer the flint, which is a method I learned from the forum. Not sure if it was Stumpkiller or Paulvallandigham who described it.
To hammer the flint, open your frizzen (known in the old days as the "hammer") slightly and lower the cock so it just hits the bottom edge of the frizzen. You'll have to play with the frizzen opening a bit to find this spot. When you find it, hold the frizzen in place with your thumb, pull the cock back to full cock and squeeze the trigger. The flint will hit this bottom edge and take just the right amount off all the way across. It works really well.
Twisted_1in66 :hatsoff: