If you're a smoker you'll deinitely have noticed a decline in the quality of clipper lighters which I believe has something to do with the newer hexagonal flint wheels, the hexagon is not the problem but the flint wheel has changed and quickly wears the flint in such a way that it's useless after a week or so.
There's the problem here's the fix. As you can imagine this has been annoying me alot as the nozzle in wonder jet lighter is kaput - If I ever manage to lathe my own all will be well.
**Edit: New steps added**
Step 1: Removing the offending piece.
Right the only tools you should really need are a flathead screwdriver (large) and if you have clumsy or weak fingers pliers may be handy aswell.
Grab the flint wheel and pull up, remember this is for clippers, they have a seperate flint assembly, It simply pulls out.