the smaller the number, the smaller the size of the
grommet.
To install grommets, you must proceed
through a series of operations. Locate and
mark where a grommet installation is needed.
Be sure you set the grommet far enough from
the edge of material to prevent it from tearing.
Select the correct punch by matching its size to
the size of the grommet collar, as shown in figure
10-11.
After you have used the leather cutting
punch to cut a hole in the fabric, you
must mate the parts of the grommet. Place
the grommet on the finished side of the
material and the washer underneath. Deter-
mine the correct size chuck and die. As-
semble the grommet, washer, punch, and
die, as illustrated in figure 10-12. Now you
are ready to flatten the collar. This opera-
tion can be accomplished in a variety of
ways,
depending upon the availability of
tools .
Grommet Press Installation
You may have a foot-operated grommet press
or a hand press, as illustrated in figures 10-6 and
10-7. To use either type of press, you need an
assortment of chucks and dies. Install the die in
the bottom of the press and the chuck in the top
of the press. Set the foot press and check for a
clearance of the thickness of heavy paper between
the chuck and die. This prevents damage by
striking the chuck and die together. By depressing
the foot pedal or handle, you securely flatten the
grommet.
239.374
Figure 10.11.—Inside diameter measurements.
239.375
Figure 10-12.—Grommet collar, cloth, and washer in
grommet set.
Grommet Set Installation
A grommet set, consisting of a punch and
die, is used to install grommets in material.
Figure 10-12 illustrates a grommet set. The
grommet set has to be the same size as
the grommet for a proper grommet installation.
Use a rawhide mallet to strike the punch. This
action flattens the grommet. The grommet set
installation is used because of its simplicity and
portability.
GLOVE FASTENERS
The most common type of fastener used on
clothing and other items made of fabric and
rubber is the glove fastener. In many instances,
the glove fastener has replaced the conventional
button. Glove fasteners are dependable and are
used for their holding and firm gripping ability.
Figure 10-13 shows the three different types of
glove fasteners most commonly used. The main
difference between the three fasteners is size. The
Segma Dot is the smallest; the Durable Dot is the
largest type of glove fastener. Each fastener is
made of four parts: button, socket, stud, and
10-13
