EXTENSIONS
1. HANDLE EXTENSIONS
Handle extensions (a piece of pipe put onto the wrench in order to make
torqueing easier) SHOULD NOT BE USED under any circumstances. Their use
will result in erroneous torque readings, and may damage the grip or the
adjusting mechanism. While applying torque, the wrench should be held
ONLY BY THE GRIP. At high torque readings, if both hands are necessary
to apply enough pressure to operate the wrench, hold the grip in one
hand, and put the other hand on the top of the first hand, never on the
wrench body.
2. DRIVE EXTENSIONS
There are two types of drive extensions. Concentric extensions extend
directly along the centerline of the drive and as such do not effect the
torque readings. These are usually in the fotm of round torsion bars
with a square on one and and the corresponding square socket on the
other. Other extensions and attachments extend to points away from the
centerline of the drive and the torque applied with them is different
from the torque set on the wrench. Crow foot ends for example.
Blake
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