Figure 4-112. Cutting Wire
Figure 4-113. Flush Cutting
Care. Observe the following practices for the
care and upkeep of nippers and pincers.
Keep tools clean at all times. Lubricate
the pivot screw or bolt with a drop of light oil.
Apply a thin coat of oil to prevent rust.
Store so that the cutting edges will not
come in contact with other tools.
4-23. Pipe and Tube Cutters. Pipe and tube cutters
are used to cut pipe or tubing to the length required for
fabrication. Pipe and tube cutters are similar in
appearance and operation. The essential difference
between pipe and tubing is that tubing has considerably
Description. Pipe and tube cutters have a
cutting wheel and two rollers which are located in a
position so that a pipe or tube may be held between
them. The rollers may be adjusted toward or away from
the cutting wheel by a hand-adjusted screw. This action
places pressure against the tube being cut, thereby
forcing it against the cutting wheel. Pipe and tube
cutters are described in the following paragraphs.
Pipe cutters. Pipe cutters are used to cut
pipe made of steel, brass, copper, wrought iron, and
lead. The two sizes of pipe cutters generally used in the
Army have capacities of 1/8 to 2 inches, and 2 to 4
inches. A typical pipe cutter is shown in figure 4-114.
Figure 4-114. Pipe Cutters
Tube Cutters. Tube cutters are used to
cut tubing made of iron, steel, brass, copper, and
aluminum. They resemble pipe cutters, except that they
are of lighter construction. Some tube cutters have
built-in portions in the body which are rotated in the
tubing after it is cut to eliminate any burrs, shown in
Use. Because the operation of pipe and tube
cutters is so similar, and tubing maintenance is most
common in the repair of Army aircraft, the following
steps will provide procedures for the cutting of tubing.
Proceed as follows:
Figure 4-115. Tube Cutters