triangle, and cross-cut/oval) from Otto Frei
) for
around $14.00 each.
These are all high quality files, have a good feel, and are a joy
to work with. If you want to be able to do precision work, you
really need good files.
Riffler files
Riffler files are a special type of file with a curved tip [4].
They are also called precision detail files. But, why would you
want a file with a curved tip? To explain, let us assume that
you have constructed a box with a floor and four sides. After
building that box, you realize the floor has an irregularity that
needs to be removed. The space is too tight to dislodge with
a chisel-blade X‑Acto knife, and grinding it off with a round bit
4
4. A rectangular riffler file with the working surface curved
to allow it to get into constrained areas. Both ends of the file
have curved ends.
