Starrett 440RL Depth Micrometer Head

The Starrett 440RL Micrometer Depth Gage includes only the head and is compatible with the 440 series micrometer sets.

Product Description

The 440RL Micrometer Depth Gage measure depths of holes, slots, shoulders, and projections to .001″ or 0.01mm.

440RL Applications

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

440RL Uses

  • Measure the depth of holes, grooves, slots
  • Inspect materials for production control

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 0.2 lbs
Dimensions 5.4 × 1.2 × 1.1 in
Compatible With

440L; 440MZ-150RL; 440MZ-225RL; 440MZ-75RL; 440RL; 440Z-3L; 440Z-3RL; 440Z-6L; 440Z-6RL; 440Z-9L; 440Z-9RL



Lock Nut Type

Ring-Type Knurled

Thimble Type



Mic Head: ±0.0001”

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