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SCREW PITCH GAUGE (51 Leaves) (4-84 TPI)
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American National 60°
threads, 51 leaves 4-84 TPI (teeth per inch)
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ABM screw pitch gages are
among the most useful tools in any mechanics' toolbox.
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They quickly determine the
pitch of various threads.
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These gages consist of a
substantial steel case with a number of folding leaves at both ends,
each leaf having teeth corresponding to a definite pitch, marked on
each leaf.
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ABM screw pitch gages are
available in a wide range of sizes with different numbers of leaves in
various pitch ranges with which to gage.
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English and metric threads
are similar in form, but English threads are described in threads per
inch and metric threads by the distance from one crest to the next.
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Leaves on all gages have a
special narrow design, permitting checking internal threads in nuts,
etc., as well as external threads.
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Item Code No. |
Range |
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ABM-EPT-2912b
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4 - 84
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