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18-0001 Theodolite Target
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For optical sighting: Bull's Eye target on 45° Face |
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The 18-0001 provides a red bull's eye target on a face which is
ground to 45° with respect to the axis of the target's shank. This
allows easy sighting from a wide viewing angle. This
plug target fits into holders which may be used with our Invar
system (see below) or in any 1/4" holder which provides a slip
fit for a 0.2498" shank. When used with an Invar tubing
assembly, the target pattern is located on the central axis of
the tubing stackup.
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Effective length*: 0.500" ± 0.0005"
(12.7mm ± 0.013mm)
Shank diameter: 0.2498" +0.0000",
-0.0005" for slip fit into 1/4" target holder. |
Material: Stainless steel
Finish: Non-glare, ground finish for easy viewing. |
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[*Effective length is measured from the bottom interface plane which mates to a
target holder, to the point along the axis of the target which intersects the target
face plane (the center of the bull's eye).] |
- 14158 or 14159 Invar System target holders
- 740-A Adjustable Floor Target Mount
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