The Starrett 575 micrometers have a pointed spindle and a double V-anvil, both shaped to contact the screw thread. The micrometer reading therefore gives the pitch diameter. 0-1" Range, .001" Grad, 32-40 TPI.
Specifications
Brand : Starrett
Category : Specialty Micrometers
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Description
The Starrett 575 micrometers have a pointed spindle and a double V-anvil, both shaped to contact the screw thread. The micrometer reading therefore gives the pitch diameter. 0-1" Range, .001" Grad, 32-40 TPI.