Starrett 823AZ Tubular Inside Micrometer Set with Case, 1.5-8″ Range, .001″

Original price was: $449.00.Current price is: $397.00.

The Starrett 823AZ Tubular Inside Micrometer Set is highly useful tools for internal linear measurements. It’s ideal for measuring cylinders, rings, setting calipers, comparing gages, and measuring parallel surfaces.

Add 5-7 days for calibration

Product Description

The Starrett 823AZ Tubular Inside Micrometer Set offers all the precision and reliability you expect from the Starrett name, at a price that won’t break the bank. Made of steel tubing, the extension rods are lightweight and extremely rigid. They’re approximately 3/8″ (9.5mm) in diameter, which makes them ideal for mechanics who prefer this larger diameter.

The interchangeable anvils ensure that you’ll always be able to get the perfect measurement, no matter what the job requires.

Each rod attaches to either one or both ends of the head—meaning you can find the best balance, feel, and ease of reading depending on your preference. You can also adjust each rod individually for wear by the hardened and ground anvil at its end.

823AZ Features and Specifications

  • Tubular measuring rods are lightweight, yet extremely rigid.
  • Insulated rods, with the exception of 1/2″ (13mm) and 1″ (25mm) sizes.
  • Each marked rod with lengths
  • Hardened and ground anvils on rods are adjustable for length.
  • Interchangeable anvils on both 1/2″ (13mm) and 1″ (25mm) heads
  • Quick reading figures – every thousandth numbered on inch reading tools
  • Lock nut furnished on 1″ (25mm) heads
  • 5-1/2″ (140mm) long, convenient handle furnished on A, B, and F micrometers will provide correct balance through clamping.

What’s in the Box

  • (5) Rods
  • (1) Handle
  • (1) Wrench
  • (1) Hardened Case


  • Manufacturing
  • Machining
  • Automotive
  • Aerospace
  • Engineering
  • Construction
  • Inspection
  • Industrial
  • Quality Control
  • Medical


  • Measure the internal diameters of tubes, holes, bores, or cylindrical objects

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 0.85 lbs
Dimensions 7.4 × 3.7 × 1.5 in




Movement of Screw


No of Measuring Rods


No of Micrometers


Thimble Type


Operation Type



Mic head ±0.0001"; Rods ±0.0002"



Contact Point Material


Contact Point Shape


Rod Diameter


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