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SCREWDRIVERS AND NUT DRIVERS
• • Users and bystanders must wear safety goggles.
• • To avoid possible eye injury from flying objects, safety goggles or
equivalent protection conforming to ANSI Z87.1 shall be worn and
kept clean by the user and all persons in the immediate area
where any tool is being used.
• • Never use a screwdriver or nut driver for prying, punching,
chiseling, scoring or scraping.
• • Never hammer on screwdrivers or nut drivers and never use a
screwdriver or a nutdriver as a hammer.
SCREWDRIVERS &
NUT DRIVERS SAFETY
• • Comfort or plastic grips on handles are not intended to give any
degree of protection against electric shock and screwdrivers and
nut drivers shall not be used on or near live electric circuits.
• • Users shall apply a controlled force with a stance adjusted and
braced to prevent rapid bodily movement or a fall if sudden
release occurs. Minimize pressure. Screws are driven by torque
(turning power), not pressure.
• • Match the type of screwdriver to the head of the screw and select
the appropriate size screwdriver to do the job.
• • Never sharpen or alter a screwdriver to change the fit.
• • Use the correct size nutdriver to fit the fastener. Do not use inch
nut drivers on metric fasteners or metric nut drivers on inch
fasteners because the fit is not good enough.
ASME B107.600 – Screwdrivers
ASME B107.110 – Nutdrivers
252
N
• • Never use cheater bars to increase handle leverage.
• • Never expose any screwdriver or nut driver to excessive
heat, which may change the hardness or microstructure
and ruin the tool.
• • Never use pliers on the handle of a screwdriver or nutdriver
to get extra turning power. A wrench can be used on the
square shank or bolster of screwdrivers designed for
that purpose.
• • Keep handles clean for a secure grip.
• • Inspect and discard bent, worn, cracked, or damaged
screwdrivers or nut drivers. Do not grind or attempt to
repair screwdrivers.