That depends. Many distributors require that you use feeler gauges and a screwdriver. Some of the GM distributors had a little access door on the side of the distributor cap and you'd use a dwell-tach and an Allen wrench to adjust the points.
It was a tool used to accurately set the gap on ignition points. They don't get much use these days.
you can go to any parts store and buy a feeler gauge for a couple of dollars. use that to set the air gap between the coil and the flywheel. use the oem specs
The gap for a 1993 Acura Integra is 0.44. Use a gapping tool.
There are kits available which turn your old points distributor into an electronic ignition system, i have converted both my veedubs and it removes all of the guesswork & trouble from your distributor. The kit comes with instructions and is very easy to use, you basically just gut your distributor cap & put in a circuit board & boom, electronic ignition. I will post a link below. Oh, and gap your plugs at .024 inches.
yes
They are way more dpendable then points and condensors.
you can use a dime and get close.
What points did sailors use to navigate
If your car requires a rather large gap you might use a coin to check the gap. Check the thickness of coins in your country and if any of them match or are close to the gap required for your car you're in luck.
Use the Solver tool. See related links for an example.
Don't understand your question. Are you asking how to gap the plugs. The proper gap is listed in your owner's manual and under the hood on a placard. Most plugs come pre-gapped. To check and adjust the gap, use a tool designed for this purpose. Just ask the parts store for a plug gap tool.
Plugs with a single ground electrode 0.8mm For those who use a standard Spark Plug gap measurment tool. .032 of an Inch .