USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 2
e. Care of Cutters.
(1) Sharpening and Grinding. Sharpen and grind cutter blades as you
would shears. The blades of most cutters are easily removed. Sharpen dull
blades with a file and an oilstone.
Grind blades that are nicked, have
distorted bevels, or are worn beyond a simple sharpening job.
Determine
bevel or shape of cutting edges and adjust grinder rest to obtain the
desired angle.
Dip the blade in water frequently to preserve temper.
Remove wire edge on an oilstone.
Reassemble cutter.
After grinding and
sharpening, make certain the cutting edges meet perfectly and, in the case
of shear cut cutters, the edges must pass each other in a tight fit.
(2) Adjustments.
Most cutter blades can be adjusted to compensate
for small wear by tightening the adjustment screw between the blades. When
assembling cutting edges on cutters, make certain attaching bolts are tight
and that the bolt lock plate between the blades is in place and secure.
(3) Storage. When not in use, apply a light film of oil on cutting
edges and store so that the cutting edges do not contact other metals or
humans.
Wrap the glass cutter wheel in cotton or a small piece of rag
saturated with light machine oil. For long periods of storage, coat entire
cutter with rust preventive compound and store in a dry place.
9.
Pipe and Tube Cutters, and Flaring Tools
a. Purpose. Pipe cutters (figure 121 on the following page) are used
to cut pipe made of steel, brass, copper, wrought iron, and lead.
Tube
cutters (figure 121) are used to cut tube made of iron, steel, brass,
copper, and aluminum.
The essential difference is that tubing has
considerably thinner walls as compared to pipe. Flaring tools (figure 122
on the following page) are used to make single or double flares in the ends
of tubing.
b. Types of Pipe and Tube Cutters, and Flaring Tools.
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