Range/Size: 28-30 TPI
585FP Screw Thread Micrometer: 28-30 TPI
The 585FP has graduations of .001".
The Starrett 585 micrometers have a pointed spindle and a double V-anvil, both shaped to contact the screw thread as shown in the drawing. The micrometer reading therefore gives the pitch diameter. 1-2" Range, .001" Grad, 28-30 TPI.
The 585FP has the Starrett satin chrome finish - no glare - resists rust
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