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Precision Tools - Micrometers - Screw Thread


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Brown & Sharpe Micromaster Micrometers - Thread Micrometers 

• 3-key functions with RS-232 data output
• Spindle Lock

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Brown & Sharpe Screw Thread Micrometers - Series AC Threadmaster 

• Measure pitch diameter of both Unified and American National Threads from 2.5 to 64 TPI
• Fine threaded, fully adjustable anvils with locking levers are standard
• One set of interchangeable anvil and spindle inserts (available separately below) can be used on all sizes to reduce your inventory
• Includes fitted case with storage for inserts
• Inserts not included

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Fowler Screw Thread Micrometers - EZ-Read 

• Direct reading to .0001" without a vernier
• For measuring pitch diameters of 60º unified (UNF) threads from 64 to 3.5 TPI
• Non-rotating spindle
• V-anvil and conical spindle made from high grade steel, hardened and ground
• Complete set of thread anvils
• Accuracy: .00016"
• Available in metric for measurement of 60º unified thread
• Meets or exceeds Federal accuracy specs

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Micromaster Micrometers - Thread Micrometers 

• 3-key functions with RS-232 data output
• Spindle Lock

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Mitutoyo Digimatic Specialty Micrometers - Screw Thread Micrometers 

• Interchangeable V-Anvil Type for measuring pitch diameters ready to accept optional anvils (pairs) listed below. Must select at least one pair

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Mitutoyo Screw Thread Micrometers 

• Available with inter- changeable anvils
• Measures pitch diameter
• Each anvil can be used for both metric and unified external threads
• The correct pair of anvils must be selected and inserted in the hollow micrometer spindle and anvil
• 60º V-Anvil and Conical Spindle are made of high-grade special steel, hardened and precision ground • Ratchet stop
• Position of the anvil can be adjusted by the knurled screw located on the anvil side and securely locked in position • Complete with fitted carrying case

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Starrett Electronic Digital Special-Purpose Micrometer - Screw Thread

  • Range 0-1" (0-25 mm).
  • Resolution .00005" (.001 mm).
  • 60 conical anvil and spindle faces for measuring small grooves, recesses and screw thread comparisons, etc.
  • Zero absolute.
  • Output capability to Starrett SPC Plus hardware and software and to IBM compatible PCs.
  • High-contrast LCD readout with large numbers.
  • Auto shutdown after 30 mins. of idle time.
  • One-year working battery life.
  • Error and flashing out-of-tolerance displays.
  • Inch/mm conversion.
  • High-low limit settings.
  • Limits mode for entering product specifications.
  • Non-glare satin chrome finish on thimble and sleeve.
  • Friction thimble and ring-type locknut.
  • Rigid frame construction and balanced feel.
  • Cases not supplied.





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Starrett Screw Thread Micrometers - for Measuring Pitch Diameter 

• These micrometers have a pointed spindle and a double V-anvil, both shaped to contact the screw thread giving pitch diameter
• Furnished with fixed (non-rotating) anvil
• Design allows 50% to 75% contact with the thread to be measured, ensuring contact with the pitch diameter at all times
• Design also ensures against contact with the root area of the thread
• Tools are accurate to ± .0002" or 0.004 mm
• 1 - 2" and 25 - 50 mm Micrometers come with 1" or 25 mm standard
• Metric for measuring ISO metric and MJ screw threads
• Inch for measuring American United National and United J series threads

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Starrett Screw Thread Micrometers - Screw Thread Comparator Micrometer 

• Smooth black enamel tapered frame
• Satin chrome finish on sleeve and thimble - no glare, resists rust
• One-piece extra rigid spindle
• Hardened threads are ground from the solid and stabilized
• One-piece drop forged steel frame is ribbed for extra rigidity
• Without ratchet stop or lock nut
•Range: 0 - 7/8"
• Graduation: .001"
• New sleeve design with staggered lines assures precise, easy readability

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XACT Point Micrometers 

• Satin chrome finish on thimble
• Ratchet thimble and lock nut
• Carbide tipped spindle and anvil
• Includes fitted case

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XACT Screw Thread Micrometer Sets

  • Ratchet stop permits uniform and consistent measurement.
  • Micrometer anvil is fully adjustable. Includes fitted case.






Servicing Industry Since 1968

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