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, 4 1/2-6 Tpi.
- No glare Starrett satin chrome finish
- Advanced sleeve design with staggered lines and distinct figures for precise, easy readability
- Balanced frame design for comfortable, accurate measuring
- Tapered frame for narrow slots and tight places
- Furnished with fixed, non-rotating anvil
- One-piece frame of drop forged steel
- Extremely hard and stable one-piece spindle
- Quick and easy adjustment
- Design allows 50% to 75% contact with the thread to be measured, insuring contact with the pitch diameter at all times
- For measuring American Unified National series and Unified J series screw threads
- Series 585 micrometers come with a one-inch standard at no extra cost
- Decimal equivalents on inch tool