Fred - PB Swiss makes a BikeTool, also available under Victorinox branding.
I built my own assortment buying loose PB Swiss bits during holiday promo seasons.
I also have inexpensive Craftsman and MIT (probably now under Tekton branding) socket sets. A lot of bike maintenance stuff does take more than a bit screwdriver can handle torque-wise.
Jackie, the Wera Zyklop mini is an excellent bit ratchet, and that set sees a lot of use here. The bits will most certainly be helpful, but even that bit ratchet is going to be on the small side for some of what you’re going to want to do.
I have older Park Tool beam-style torque wrenches for final tightening (they were maybe $25-30 each when I bought them), and I often use a larger driving tool or 1/4" ratchet for lighter duty tasks, and a breaker bar or larger ratchet with adapter for tougher tasks.
Something like replacing or maintaining pedals is going to require a bigger tool. I’ve had to use a dead blow mallet to break really stubborn fasteners free.
The Zylop swivel-head ratchets are helpful, in that they can be used for higher torque delivery, or inline with screwdriver-like speed.
But, I also have Park Tool L or P-handle drivers. I believe they’re made by Bondhus, which is a good name when it comes to ball-end hex drivers. I didn’t buy a whole set, I bought drivers in 4mm, 5mm, 6mm sizes.
OH! I also bought a Craftsman magnetic L-shaped driver once. It lost a magnet the first time I used it, but I mostly bought the set for the hex bits it came with.
For greatest precision, you cannot do better than PB Swiss. Wera might be a good alternative - I’ve used those bits with good success. I’ve stripped some screws, though, mainly button head socket head screws, with shallow recesses.
The benefit of the PB Swiss/Victorinox Bike tool is that you get a portable “emergency tool” that you can pack with you for road or trail adjustments. But it’s pricey, even discounted under Victorinox branding.
Bits: Slot 3; PH 2; TX 25; Hex 2, 2.5, 3, 4, 6
In terms of ratchet tools, I have Wera sets, which come with ratchets, bits, and bit holders. But there’s a lot of wasted value if you’re looking at bike-maintenance-only tools.
A more economical solution would be Gearwrench Roto Ratchets, probably 3/8" or a 3/8" and 1/4" set -
And any common bit holder adapter should do (I love Wera adapters, but their socket bit adapters aren’t as compelling). You can find them for $5-6, sometimes less.