Everyone eventually settles on a few items they prefer, but, to get you started...
Since MOST stores do not sell American made implements any longer, buy used ones at yard sales or try www.gemplers.com
I get many of my American or Swiss made tools there. The far-east junk will not hold up.
A word about Gempler's. They have LISTENED to my input on the phone and have added some items tailored to bottle diggers to their catalog.
A long handled AND a short-handled round spade. I prefer the long-handled one to be sharp, the short one, dull. You NEVER put your weight on the shovel when you are getting in to bottles. You EASE the blade downwards, wiggling it as you go. The shorter one is used to do a lot of sideways works--kind of like sweeping as you go.
A long-handled potato rake. I prefer the four tine version, some prefer a three tine cultivator.
A hand-held metal scratcher. I make mine out of longer ones. I cut down the handle, cut off the two outer times and have a two tine hand scratcher.
A plastic scratcher. This is essential when hitting a pocket of older, fragile glass OR porcelain signs. You don't want to damage them.
A GOOD folding saw
quality root nippers and loppers
I bring a battery operated sawz-all for metal and roots (if I get tired of sawing).
A come-along, stout rope and a pair of modified vice-grips (big pair)--I use this setup to clamp on to stubborn metal and slowly weasle it out. Saves a lot of back-ache.
A good head lamp and hard hat to put it on.
A 1st Aid kit w/ an epi-pen.
An eye wash bottle (just have a bottle of water that no one drinks).
knee pads (I went through half a dozen brands until I modified my own)
leather gloves (must have)
hard soled leather boots (must have)
a roll of TP (MUST have)
newspapers for bottle wrapping
Clothes to change in to or a good pair of coveralls
a small transistor radio, for weather alerts and your local ball game
I also have in my truck the following-
A large ice spud type bar
a grain bucket and length of knotted rope
a pick axe
folded flat liquor boxes/separators and a roll of tape. Safest way to move good bottles
a couple of 5 hour energy drinks (for all-nighters)
Modify your list and you'll have it. Obviously, if you are walking in, you take what fits in a pack and bring an empty one along to fill.
You can also modify a pull-behind golf bag cart (two wheels) to haul tools, etc.. They are high-wheeled and go over logs well.