Household DIY Screwdriver Tool Set
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USE/CARE OF HAND TOOLS & MEASURING TOOLS - Care of Screwdrivers

USE/CARE OF HAND TOOLS & MEASURING TOOLS - Care of Screwdrivers

  • 2019-06-14

USE/CARE OF HAND TOOLS & MEASURING TOOLS - Care of Screwdrivers


(1) Dressing and Shaping.

When a screwdriver becomes nicked, or the edges become rounded, or when other damage occurs so that it does not fit a screw slot, it must be reground or filed.

The sides must be parallel to keep the tool from lifting from the screw slot and the tip must be square, at right angles to the sides and to the blade.

If using a file, place the screwdriver in a vise.

When using a grinder, adjust the rest to hold the screwdriver against the wheel to produce the desired shape, parallel or concave.

Do not grind away more material than necessary to remove nicks or square up the end.

After squaring the tip, grind both sides until the tip is the required thickness.

Frequently dip the screwdriver into water during grinding to prevent loss of temper by overheating

If the blade discolors (blue or yellow), the temper has been damaged. 

Retemper by heating about 1 1/2 inches of blade to a cherry red with a torch.

Immediately dip about 3/4 inch of the blade in clean cold water.

Quickly rub the hardened end with aluminum oxide abrasive to brighten it.

Watch the color creep back into the tip from the heated portion of the blade.

When the color becomes light blue, dip the blade into water.

The tip is now retempered and ready for use.

hand tools


(2) Precautions.

Handle the screwdriver carefully. Use the right size screwdriver for the job.

Keep the blade clean. Do not carry a screwdriver in your pocket unless it has a pocket clip.

Never use a screwdriver for prying or chiseling operations. When difficulty is encountered in driving or removing screws that are hard to turn, do not use pliers to turn the screwdriver. Pliers will damage the screwdriver. For hard to turn screws, select a square bladed screwdriver designed for heavy-duty, and a wrench which properly fits the blade.

screwdriver set


(3) Storage.

After use, wipe the screwdriver with light oil and place it in a rack or tool box.

For long-term storage, apply rust preventive compound over all metal parts and store in a dry place.

© Copyright: GZ Yifeng Technology Electron Co., Ltd. All Rights Reserved.

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