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In the 180° “Extended” position, the
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surfaces, large cylindrical or O.D.
surfaces and inside diameters. Because
there is some leeway permitted in the
elevation between
the base of the Pocket Surf unit and
the surface to be measured, the
gage can be used to measure sur-
faces that are raised slightly above
or recessed slightly below (within
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Be sure the two “V’s” on the bottom of
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Inside diameters larger than
1.1"/28.0mm may be measured up to
a depth (in-reach) of 2.0"/50mm using
a General Purpose Probe. For smaller
inside diameters down to 1/8"/3.2mm an
optional Small Bore Probe is required.
For most I.D. measurements, the
Pocket Surf unit cannot be hand held;
it must be mounted on a stand such as
the optional EAS-2426 Universal Stand
or EAS-2496 Height Stand. Refer to
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section for ad-
ditional information.
Both the 90° and 270° positions
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Pocket Surf unit, to measure surfaces
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that cannot be accessed with the probe
in its “Closed” or 180° “Extended” posi-
tions.
The 90° probe position is also used for
measuring small workpieces with the
EAS-2421
Vee Fixture. Refer to the
Vee Fixture
section on page 17 for spe-
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