Understanding Files & Rasps
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and rasps play a vital role in shaping and smoothing many
different types of projects. Without them, some jobs would
be very difficult to complete. Let's take a look at the different
types of files and rasps that are available today.
Files and rasps come in a variety of shapes for specific applications.
These include the following:
A rectangular shape that is typically wider than it is thick
Half-Round Flat on the bottom with a semi-circular,
A three-sided model, usually with three equal width sides
Square Usually four equal width sides, often tapering
to a point
Rat-Tail Round shaped, usually tapering to a point
Pattern All files have Teeth that are cut into
the steel (typically at an angle that's 65° to 85°
across the width of the file). It's these Teeth that
do the job of material removal.
with rows of parallel Teeth are called Single Cut
files. These are the best choice for smoothing wood and for
most metal-working applications.
with diagonal, crisscrossed Teeth are called Double
Cut files. They're best for more rapid removal of metal
that are made with hundreds of individual, pyramid-shaped
Teeth are called rasps. These are used exclusively
for wood and soft materials. The Teeth on rasps can
either be machine-stitched or hand-stitched.
rasps are made by machinery and feature even, geometrically-shaped
teeth. They're less costly than hand-stitched rasps,
but won't produce as smooth a cut as a hand-stitched
rasps feature hand-formed Teeth that are randomly located.
As a result, they will produce a much smoother cut without
chattering and can be quite costly.
matter which type of file or rasp you're talking about, the
closer the cutting Teeth are together on a file or
rasp, the smoother the cut.
Week: How to use Files & Rasps properly