Reddit mentions of Tipton Gun Butler

I get a lot of plastic fouling in my chokes. I've found that any of these approaches will do the job:

1. Soaking the choke tubes in Ed's Red overnight.
   
2. The previously-mentioned brass brush + electric drill. Finding a long-enough rod can be a problem w/ 32 inch barrels, and can be messy.
   
3. Spraying a bore solvent in the barrels and let it sit (with chokes screwed-in) for a few minutes. Then, follow w/ a Tornado Brush (use the brass version if you're worried about scratches; I use the stainless steel kind).
   
   I prefer "3". because it's the least time-consuming for me while still being pretty damn thorough.
   
   "2" is probably the most thorough, however, and doesn't take much elbow grease. Having a Gun Butler (or similar) really helps.
   
   "1" takes zero physical effort but won't address plastic fouling in the barrels.

Regular bits are angled. Gunsmithing bits are square. If you use regular bits your screw heads will certainly show damage. You most certainly need proper fitting hollow ground bits to do the job right.

Field stripping an M1 Garand does not require any tools. But what you're attempting to do does.

My buddy asked me for my recommendation last year and I told him this: it's more important you have the correct sized bits vs high quality bits. If you can afford both, great! But most of us have a budget so go with a set with a large variety of sizes. Remember, both the width and depth are equally important. A bit that is too wide will open the ends of a head like an opposing set of parentheses. A bit that is too narrow round out the top like opposing lower-case r's.

He ended up buying:
Wheeler 89-Piece Deluxe Gunsmithing Screwdriver Set, Black/Yellow https://www.amazon.com/dp/B001C63M7O/ref=cm_sw_r_cp_apa_i_uwzdBbY5REFM0

And of course, you need to steady the rifle so be sure to have a cleaning rest. Mine is cheap but it works great:
Tipton Gun Butler https://www.amazon.com/dp/B0036FFQAU/ref=cm_sw_r_cp_apa_i_NyzdBbR86YV6Z