Might happen where you are but not here.
Well John,
You might like to go to your friendly Husqvarna dealer, Stihl dealer or even aftermarket parts dealer and ask for an adjusting tool for the current model carbs.
If you check "carb adjusting tools " on the Prime Line, Rotary , Oregon or Stens web sales site and see what comes up for sale .
Four individual tools or a kit of the same 4 tools together.
The new Ruzing tool ( husqvarna ) or Zama ( stihl) tools are not there
Walbro have gone to putting the screws ( where fitted ) behind potting mix so you have to dig them out.
The next level of 2 stroke cube carbs all have fixed jetting that is cast into the carb so not accessible for either tuning or cleaning and when tier 5 or 6 ( can't keep up) comes in there will be no more new 2 strokes wholesaled in the USA and 2 years after that it will be illegal to sell a new 2 stroke in the USA so all saws will be 4 stroke or electric.