You are bidding on a Like New Starrett Screw Pitch 0 to 1" Micrometers- 32 to 40 PITCH, Model # 575FP for measuring American Unified National series and Unified J series screw threads-Recently Calibrated.
These 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.
Readability Features
Range 32 to 40 PITCH
Starrett satin chrome finish - no glare - resists rust
Advanced sleeve design with staggered lines and distinct figures for precise and easy readability
Decimal equivalents on inch tools
Ease-of-Handling Features
Balanced frame and thimble design for easy handling and better readability
Gracefully designed tapered frame for use in narrow slots and tight places
Furnished with fixed (non-rotating) anvil
Accuracy and Long-Life Features
One-piece frame of drop forged steel
Extremely hard and stable one-piece spindle (the heart of our accuracy)
Quick and easy adjustment
Starrett workmanship
Design allows 50% to 75% contact with the thread to be measured, thereby insuring contact with the pitch diameter at all times
Design also insures against contact with the root area of the thread
Tools are accurate to ±.0002 or 0.004mm
The L. S. Starrett Company has been a continuous symbol of leadership and dependable service in the manufacture of fine precision tools.
I will fully guarantee this item with a cost of over $300 - "Proudly made in the US".
We have lots of quality inspection tools available - see my other auctions.
Shipping in the Continental US is $7.90 - I have very competitive rates for International bidder.
