USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 1
SPECIAL TIPPED SCREWDRIVER.
& Prince Screwdrivers (Cross-Point).
Reed & Prince
similar to the Phillips type; however, do not confuse them,
for the tip is
different, as shown in figure 9.
These screwdrivers are
issued in 3 to 8
(5) Clutch-Heed Screwdrivers.
Clutch-head screwdrivers (figure 9)
are used to drive clutch-bit screws.
These screws are commonly called
butterfly or figure 8 screws and have recessed heads.
screwdriver is issued in 3, 4, 5, and 6 inch sizes.
to drive or remove screws that cannot be lined up with the axis of common
screwdrivers, or are located in tight corners.
An offset screwdriver is
usually made from a piece of steel, round or octagonal in shape, machined so
that the end portion is at right angles to its longitudinal axis. They are
made in a variety of sizes having different width tips.
screwdrivers are made with two blades, one of different size at each end. A
double-tip offset screwdriver has four blades.
(7) Ratchet Screwdrivers.
following page) are used to drive or remove small screws rapidly.
be adjusted to turn left, right, or to be