I have not tried diamond files yet, but they sound interesting!
Thinking about hand files in general, I thought I would mention that
another great category of hand files to try are “escapement files”.
For small hand files I have found escapement files to be very useful,
in the finer 4, 6, and 8 cuts. I find that I reach for them much more
often than for my needle files, which are larger and in the coarser 2
and 4 cuts. The brand name I prefer is Grobet. Curiously, escapement
files do not seem to be quite as readily available as needle files.
An interesting tip that my instructor shared with me able small hand
files, was how to create “safety edges” by polishing areas of hand
files, so that they would not inadvertently/ unwantedly mar an area
adjacent to where one was filing.
Barrette file- polish/ round off the top “spine”, at the tip, as
well as the side edges (protruding flare of teeth only) at the very
tip. This allows one to file without the top spine and side/ edge of
the teeth cutting/ marring where one does not want.
Square file- polish one side/ face (remove the teeth). This allows
one to file a side and a corner without filing the bottom.
I used polishing rubber wheels on a flex shaft to do this, very
careful not to over polish edges where I wanted to retain crisp file
As my assortment of/ investment in hand file sets as slowly grown, I
have discovered a relatively inexpensive ($5-7 at Michaels craft
store, if I recall)) way to store, protect, and travel to classes
with them, using canvas fabric paint brush “roll-up” cases. This
prevents the files from making “tool steel upon tools steel” contact
with each other, helping to preserve the cutting edges.
Just a few little tips I thought I would pass forward today.