I will have to find a picture cause it looks different than the lens spanners I found online. I have one in a cart to hopefully purchase but the ends do not seem small enough.
I found it, it is known as a compass type lens opener. not sure why that did not show up when I googled. "Compass lens spanner" but oh well.
I've personally been using this one for a few years. I've found #10 to be a good viscosity for most vintage lenses with tight helicoids. It give a very smooth, light "like-butter" feeling, with very little resistance. With this you will need to apply a VERY THIN!!!! layer. Unless you're fixing thousands of lenses, this little jar should last you for the rest of your life. lol.
So far I've used it on my:
tbh, I find myself using Valvoline more often lately. I put the tiniest little dab in 4 equally spaced spots and just work it in.
That being said, I keep it away from plastic or rubber parts as much as possible since it is petroleum based.
Silicone for rubber and plastics, but I find the ones I have tried tended to dry out a lot faster and off-gas.
That little pig nose lookin’ screw head at the center of the advance lever. You need a spanner wrench and use those two holes to unscrew it. 95% chance it’s lefty loosey but some cams have lefty tighty so be careful.
And keep track of what order everything comes apart in!
On the count of JIS screwdrivers, I highly recommend the Vessel 9902 set: https://www.amazon.com/gp/product/B003BI4IC4/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1
They're longer shafts and better handle than the steel grip precision JIS set that Vessel makes.
Also, get a good set of precision tweezers for, well, everything. Needle-nosed curved point are what I use most often, but there are good full sets for not terribly much