These Gersung GSM-V1623A2 (.187'' / 4.8mm terminals) can be used to replace any existing faulty microswitch within your Myoungshin Fanta or any other compatible Korean lever. All you need to do is screw out the old microswitch and put the new one in its place, no soldering is required. The effective operating force is 120g.
These switches feel comparable to Omron A5s stiffness wise but feel more snappy during actuation.