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SkillsDMC ©
Depth gauge
A depth gauge is a measuring tool developed
from a steel ruler.
Depth gauges are used to measure:
•
depths of holes
•
depths of recesses and slots
•
distances in from the edges of work
The depth gauge consists of a narrow steel
ruler, fitted with a sliding frame that is clamped
along the ruler.
Using a depth gauge
Use a depth gauge to measure the depth of a
recess as follows:
•
hold the frame base firmly down on the surface
across the recess of the work to be measured
•
hold the gauge square to the work by steadying
the rule with the first finger of one hand
•
use the first finger of your other hand to press
the sliding rule down until you feel the lower end
touch against the bottom of the recess
•
tighten the locking screw
•
lift the gauge carefully out of the recess and
away from the work
•
turn the gauge into a position where you can
read the depth of the recess directly from the
ruler scale
In the previous list, three types of equipment
were discussed to use in the resources and
infrastructure industries. Ask your trainer to
provide examples and further details of any
other equipment you might use to conduct
basic measurement and calculations in your
workplace.