USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 2
(3) Blacksmith's Chisels.
(a) Handled Cold Chisel.
The blacksmith's handled cold chisel
(figure 81 on the previous page) is used to cut or chip cold metal on an
anvil.
These chisels are supplied in two sizes, one with a 1 3/8 inch
cutting edge, the other with a 1 3/4 inch cutting edge. The length of the
chisel is about five inches. It is provided with a wooden handle.
(b) Handled Hot Chisels.
The blacksmith's handled hot chisel
(figure 81) is used only when hot metal is to be cut. It has a wood handle
long enough to keep the hands at a safe distance from the hot metal, and to
provide a firm grip, because a heavy hammer or sledge is used to strike the
chisel.
This chisel is heavier and more rugged than the handled cold
chisel.
(4) Track Chisel.
A track chisel weighs 5 1/2 pounds and has a
length of 9 1/2 inches. The handle is 24 inches long. This chisel is used
to cut off track bolts and boiler rivet heads, as well as to cut rail where
a saw or cutting torch is not available.
(5) Rivet Buster Chisel.
A rivet buster chisel (figure 81) is 9
inches long and has a 3/4 inch cutting edge.
It is designed to reach
chassis rivets and those in other difficult places that other chisels cannot
reach.
(6) Glass Removing Channel Chisel. The glass removing channel chisel
(figure 81) is 15 1/2 inches long with a curved blade. It is used to cut
away hard putty from around glass and to separate glass from its frame
channel.
c. Use of Chisels.
(1) Woodworker's Chisels.
A woodworker's chisel should always be
held with the flat side or back of the chisel against the work for smoothing
and finishing cuts.
Whenever possible, it should not be pushed straight,
but should be moved laterally at the same time as it is pushed forward
(figure 82 on the following page).
This method ensures a shearing cut,
which, with care, will produce a smooth and even surface even when the work
is cross-grained.
On rough work, use a hammer or mallet to drive the
socket-type chisel. On fine
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