USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 1
(7) Welder's Hammer.
A welder's hammer (figure 2, view A, on the
previous page) is used for chipping welds. The opposite end of the hammer
is sometimes equipped with a wire brush for cleaning metals before welding,
and for brushing slag away after chipping.
(8) Soft-Faced Hammers.
Wood-handled, soft-faced hammers are used
for striking heavy blows where the steel-faced hammers would bruise or mar
the surface of the work. The soft faces are made of rubber, wood, rawhide,
copper, lead, or plastic, and the head may vary in weight from 6 ounces to 6
pounds.
The Army Ordnance Supply System issues a 3 pound copper hammer
(figure 2, view G) and several inserted plastic-face hammers. The plastic-
face hammers (figure 2, view g) are supplied with two soft, two medium, two
tough, and two nylon replaceable faces.
c. Types of Mallets.
(1) Carpenter's Mallet. A carpenter's mallet (figure 2, view H) is a
wooden, short-handled tool used to drive wooden handled chisels, wooden
dowels, or small stakes. The head is cylindrical and has two flat driving
faces. It is sometimes reinforced with iron bands at each end. This mallet
is also used for smoothing out dents in sheet metal and for turning thin
metal edges and seams without cutting the metal surface.
(2) Rawhide Mallet. The rawhide mallet (figure 2, view K) is used to
form or shape sheet metal where hard-faced or steel hammers might mar or
injure the work.
(3) Tinner's Mallet. A tinner's mallet (figure 2, view J) is made of
wood.
It ranges in size from 1 1/4 inch head diameter and 3 inch head
length to 3 1/2 inch head diameter and 6 inch head length.
d. Use of Hammers and Mallets.
(1) Using a Carpenter's Hammer.
(a) Driving Nails.
The wrist and arm motion, used when driving
nails, depends upon the power of the impact required. Small nails require
light blows which are struck almost entirely with a wrist motion.
Heavy
blows required to drive a large nail come from the wrist, forearm, and
shoulder. Always
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