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Starrett 123Z-12 12”, .001” Grad, Slide Calipers, Master Vernier Calipers

Starrett 123Z-12 12”, .001” Grad, Slide Calipers, Master Vernier Calipers in Finished Wood Case EDP# 50524

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Product Overview: Starrett 123Z-12 12”, .001” Grad, Slide Calipers, Master Vernier Calipers

 

Features:



  • Long 50-division vernier scales, made popular by Starrett. This feature permits just half as many bar graduations as conventional single-vernier tools. These widely-spaced graduations make possible easy reading to .001” or 0.02mm without requiring a magnifying glass
  • Flush fitting of the vernier scales to the main scale means that these are in the same plane, which eliminates parallax. Vernier scales are adjustable
  • The open-face design of the slide allows both the inside and outside vernier scale on the same side, thus allowing both verniers to be read without turning the tool over
  • Black lines and figures against the Starrett satin chrome finish make reading a pleasure, not an effort
  • Screw-type adjusting nut allows for fine measuring adjustments
  • Lock nut to hold measurements
  • These tools are made of the finest tool steel. This makes the jaws harder and longer-wearing than stainless tools. All tools through 24” (600mm) also have hardened and stabilized bars
  • Measuring surfaces are hardened, ground and lapped to close limits
  • All graduations are machine divided for accuracy, not photo-engraved. They are also deeper and sharper
  • The combination straight and angular ways on the master bar allow for positive alignment of graduations and easy adjustment of the flush-fitting verniers
  • Sizes through 24” have divider points on the back side to accurately set dividers and trammels as needed
  • Tools with inch and millimeter graduations on the same bar have outside readings only. (Inside readings must be compensated for by adding the nib width to the indicated reading.)
  • The longer length of the adjusting jaw slide provides a longer bearing surface on the master bar, ensuring squareness with the solid jaw and extra resistance to springing
  • Tight, smoothly fitted slides for maximum accuracy and easy adjustment
  • Made to rigid Starrett standards

NOTE: For inside measurements, the thickness of the nibs must be added to the caliper reading as follows: .300” (English) or 7.62mm (Metric)