Safety Notes: Screwdriver

Overview

. Screwdrivers screw screws. Always match the screwdriver to the screw head, both in terms of size and type.

Use a slot screwdriver with a blade tip width that is the same as the width of slotted screw head.
For cross head screws, use the correct size and type of screwdriver: a Phillips screwdriver may slip out of a screw head designed for use with the slightly, flatter-tipped Pozidriv screwdriver.
Keep the screwdriver handle clean. A greasy handle could cause an injury or damage from unexpected slippage.
Shut off electricity before beginning work on electrical equipment (lock out, de-energize and tag out).
Use a screw-holding screwdriver (with screw-holding clips or magnetic blades) to get screws started in awkward, hard-to-reach areas. Square-tipped screwdrivers (e.g., Robertson) that hold screws with recessed square holes are also useful in such situations.
Use an offset screwdriver in close quarters where a conventional screwdriver cannot be used.

A screwdriver is not a chisel.
Do not lean or push on a screwdriver with any more force than necessary to keep contact with the screw. A screw properly piloted and fitted will draw itself into the right position when turned. Keep the shank directly over the screw being driven.
Do not hold the stock in one hand while using the screwdriver with the other. If the screwdriver slips out of the slot, you may cut your hand.
Do not hammer screws which cannot be turned.
Do not try to use screwdrivers on screw heads for which they are not designed (e.g., straight blade screwdrivers on Phillips, clutch head, Torx or multi-flutted spline screw heads).
Do not use a screwdriver for prying, punching, chiseling, scoring, scraping or stirring paint.
Do not use pliers on the handle of a screwdriver for extra turning power. A wrench should only be used on the square screwdriver shank designed for that purpose.
Do not use a screwdriver to check if an electrical circuit is live. Use a suitable meter or other circuit testing device.