USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 1
c. Using a Screwdriver.
(1) Driving Screws. Use the longest screwdriver available which is
convenient for the work. The width of the tip should equal the length of
the screw slot and the tip must be thick enough to fit the width of the
screw slot (figure 12). Hold the handle firmly in one hand with the head of
the handle against the palm and grasp the handle near the ferrule with your
thumb and fingers (figure 13 on the following page). Hold the screwdriver
in line with the axis of the screw and center the tip in the screw slot. To
drive the screw in, press down with your palm and turn the screwdriver
clockwise (to the right). When taking a fresh grip on the handle, steady
the tip and keep it pressed in the screw slot with your other hand. Relax
your other hand when you are ready to turn the screwdriver again. To drive
screws easier, rub a little soap into the threads of a wood screw and put a
drop of oil or a little graphite on a machine screw. Doing this will also
minimize the chance of rust forming on the screws and will make them easier
to remove.
FIGURE 12.
PROPER BLADE FOR SPECIFIC SCREW.
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