Cutters are cutting hand tools that are used to cut
different kinds of materials in different shapes and sizes. Depending on
the material and the object to be cut, there are different types of
cutters. Each cutter is used to execute a different kind of function and
each cutter is designed in such a so that it makes clean cuts with
Types of Cutters
Features of cutters
- Circle cutter: Circle cutters cut circular holes in
sheets of metal, wood, plastic, hardboard, brass, copper, mild
steel, aluminum or composition materials. The cutter features a
regular center drill with a cutting tool mounted on an adjustable
bar. Diameter of the circle is regulated by a setscrew adjustment on
the cutting bar. Downward pressure is applied as the regular bit
pulls into the material and forces the cutting tool down in a slowly
lowering circle. Ground, hardened cutting tools assure clean, even
cutting in a variety of materials. Cutting edges available on hole
cutters include high-speed steel bi-metal, carbide grit and diamond
grit. Each cutting edge is designed to work best on specific
materials. Bi-metal for metal, wood, plastic, etc.; carbide for
tile, brick, fiberglass and hard composites; diamond for glass,
ceramics and other abrasive materials. Due to the unbalanced load
inherent in the design of these tools, for safety's sake, they must
be used only in drill presses or drill stands and never with a
- Pipe cutter: Pipe cutters make a faster, cleaner cut. An
ordinary hacksaw is often used to cut pipe, even though it is almost
impossible to make a clean, straight cut. Most cutters have a single
cutting wheel and two rollers, which make smooth right-angle cuts.
Such cutters are used to cut pipe 1/8" to 6" in diameter.
Cutters are sized for pipe 1/8" to 2", 1" to 3",
2" to 4" or 4" to 6" in diameter. Major points
of wear are rollers, wheels and pins on which they are mounted. When
cutter wheels are worn out, they should be replaced.
- Tube cutter: Pipe and tubing cutters are basically used
as plumbing tools. For cutting brass, copper, aluminum or thin-wall
conduit tubing, tubing cutters are recommended. Tubing cutters are
almost similar to pipe cutters. They have cutter wheels and rollers.
Some have a triangular blade-type reamer that folds out of the way
when not in use. Tubing cutters for plastic and separate cutting
wheels for plastic are available. Tubing cutters are sized to cut
material with outside diameters ranging from 1/8" through 4-1/2".
- Wire cutter: A wire cutter is a tool that is used to
make clean cuts in wires by using pressure. Most wire cutters are
hand-held tools like the pliers. In fact, there are many pliers like
needle-nose pliers and wire strippers which have some form of wire
cutting feature. Wire cutters are also available in large pneumatic
formed tools used for heavier wires such as power lines.
- Glass cutter Glass cutter are the specially designed
cutters meant for cutting glass of all types.
Some cutters are made with a spring
in the handle to
open them automatically after each cut, providing ease and comfort for
the user. Most cutters have PVC handle grips for comfort.
Uses of cutters
- Side Cutters have a cutting blade on one side
only and are available in long, curved and short-nose types.
- End Cutters have cutting blades on the end
and are used to make sharp, clean cuts close to the surface on
wires, bolts and rivets.
- Diagonal Cutters have two cutting blades set
diagonally to the joint and/or handles. Shears have cutting edges
that pass each other.
Cutters are very handy hand tools used to cut various ferrous materials
- Rod wire rope
- Steel wire and cable
- Guy strand
- Aircraft cable
- Bolts and steel strapping.
There are cutters which can cut non-ferrous material like copper
and aluminum. Cutters are widely used in:
- Plant maintenance
- Electrical construction and maintenance, and
- Other operations.
It is always advisable to use the right cutter for the job.
Cutters should be adjusted properly and always lubricated. Jaws of the
cutters can be sharpened by following instructions given with the
manual. When the cutter blade becomes too blunt, or when the cutters
crack or broke or show signs of looseness, it is better to discard then.
Repairing cutters or replacing cutters are not recommended.