I do not like to carry tools in my pocket. All maintenance performed by hand, but you can use a screwdriver if you want. I use protitip for many months, but it never opened in my pocket. The magnet has a holding force of about 1 kg.
I look forward to a package from the factory. Now I have only pictures. After a few days I will be able to test this sample, and if I am satisfied with the quality, the atomizer will go into production.