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Specifications

USE WITH LENS POWER 20X
DESCRIPTION SCREW THREAD CHART (7 To 80 T.P.I.)
Weight (lb) 2

The OC-29-20X Screw Thread Overlay Chart from Suburban Tool is a 20X screw thread overlay chart covering 7 to 80 T.P.I. for the Master-View 14" optical comparator. Its higher magnification sharpens fine thread detail so you can confirm pitch, angle, and form at a glance.

  • Matched to 20X lens power for detailed reading of the projected thread profile
  • Spans a wide 7 to 80 T.P.I. range for versatile inch thread inspection
  • Designed to work with all of Suburban Tool's 14" optical comparators
  • A dependable choice for QC and toolroom thread form verification
  • Made in the USA by Suburban Tool

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