After you find some info on HOW it's done, buy the equipment from Brownell's.
You'll need:
Checkering files in 20, 30, and 40 Lines per inch, and possibly a two line narrow file.
File handles.
A good triangular Swiss needle file, with handle
Chalk to chalk the files to prevent chips from sticking in the teeth.
A good file card (brush) with a pick.
A good rotating and swiveling vise with padded vise jaws.
A GOOD light.
An Opti-Visor magnifier in your choice of focus length.
A wire brush to scrub the checkering to clean it of chips and burrs, and to slightly dull too-sharp work.
For steel, some cold blue, and for aluminum and stainless something like machinist's blue lay-out fluid. This is to darken the checkering so your progress is more easily judged.
And most important, some mild steel round bar and flat bar stock to practice on.
If you want to checker 1911 frames, buy some 3/4" bar stock to practice on.
A guide device that helps you get the first lines started properly aligned is good, but remember, checkering is an eyeball skill. No guide can keep things straight.
It's strictly a matter of eye, hand, and developed skill.
