Starrett T444.1XRL-5 Ratchet Thimble Outside Micrometer, 4-5″ Range, .0001″

Original price was: $257.00.Current price is: $227.00.

The T444.1XRL-5 is a part of the popular T444.1 series micrometers. It has a heat insulator on the frame to help reduce temperature-related expansion or contraction.

Add 5-7 days for calibration

Product Description

The Starrett T444.1XRL-5 Ratchet Thimble Outside Micrometer provides accurate measurements of small objects and parts. The spindle and anvil have flat measuring faces, carbide-tipped for wear resistance and durability. A spindle lock helps provide secure locking of the measurement.

With its quick and easy adjustment, you can be sure that no matter how often you use it, your measurements will always be spot-on. The rigid and cast iron frame will last for years. It features a 4-5” measuring range and a 0.0001” graduation.


  • No-glare satin chrome finish, which resists rust
  • Advanced sleeve design with staggered lines and
    distinct figures for precise and easy readability
  • Balanced frame and thimble design to ensure
    easy handling and better readability
  • Insulated frame for prevention of temperature
    related expansion and contraction
  • Provides quick and easy adjustment
  • Reading in ten-thousandths of an inch (.0001″)
    with a vernier scale on the sleeve

What’s in the Box

  • Hardened plastic case
  • (1) T444.1XRL-5 outside micrometer
  • (1) Wrench
  • (1) Measuring standard


  • Manufacturing
  • Machining
  • Automotive
  • Aerospace
  • Energy
  • Defense
  • Construction
  • Inspection


  • Measure the diameter of an object
  • Measure the length of a piece.
  • Determine the thickness of materials
  • Check the accuracy of other measuring tools

About Starrett

The L.S. Starrett Company is a world leader in precision measuring tools and instruments. Since 1880, they have been an industry standard. Starrett’s high quality and durability have made the brand an industry standard for decades. They produce products for various industries, including aerospace, automotive, manufacturing, and commercial construction. Today, they’ve expanded into metalworking, making saw blade products for manufacturing operations worldwide.

Additional Information

Weight 1.65 lbs
Dimensions 10.8 × 5.9 × 1.8 in






Anvil Material

Steel, Carbide

Spindle Material

Steel, Carbide

Spindle Type


Operation Type




Lock Nut Type

Knurled Ring Type



Anvil Type



Steel, Cast Iron

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