by GWiens2001 » 9 Sep 2015 23:44
It does not mean that it is made in Switzerland (though Grobet is). Swiss Cut is the pattern in which the file is cut. There are many different file cut patterns such as mill cut, bastard cut, and so forth.
The number ( #2 and #4 Swiss cut being the most common Swiss Cut numbers) is like sandpaper grades... the larger the number, the finer the finish. The number 4 leaves an almost mirror finish, but the flip side is that it cuts slower since it takes less material off with each sweep of the file. A number 2 cuts faster, but leaves a rougher surface. Some who impression competitively instead of just hobby impressioning say the rougher surface is easier to read.
Additionally, there are different locations on the file that cut. A flat file can have the cutting surfaces only on the flat sides, the edges (as in a warding file), or on both.
Most of the time that I get for impressioning is when things are slow at work. Being a mechanic by trade, I have files that are less-than-Grobet quality at work. (I don't take my Grobet to work, since if it fell, the tip might break off). Have some really cheap needle files from Harbor Freight, and some larger, but MUCH rougher files by GearWrench. In order to get a readable surface to impression, I file what I need to file, then wrap some find sandpaper around a small screwdriver and smooth out the cuts. Then it is pretty easy to see the impressioning marks. And it costs much less than the Grobet I use at home.
Gordon
Just when you finally think you have learned it all, that is when you learn that you don't know anything yet.