Starrett 440Z-9L Depth Micrometer 0-9" Range 2-1/2" Base Plain Thimble 9-Rod Set

The Starrett 440Z-9L is a precision mechanical depth micrometer from Starrett's renowned Series 440, designed to accurately measure the depths of holes, slots, shoulders, and projections. With a full 0–9" measurement range and .001" graduations, it delivers the accuracy and reliability that machinists, toolmakers, and quality control professionals demand.

The 440Z-9L features a rigid one-piece steel frame with a flat carbide spindle and flat anvil for stable, consistent contact. The combination ratchet and speeder mechanism ensures uniform measuring pressure and faster rod changes, while the ring-type knurled lock nut provides quick and positive locking once a measurement is taken. Nine interchangeable 1/8" diameter measuring rods cover the complete range in 1" increments.

Key Features:

• Measurement Range: 0–9" (in 1" rod increments)
• Graduations: .001"
• Micrometer Head Accuracy: +/-.0001"
• Rod Accuracy: +/-.0002"
• Base Length: 2-1/2" (63.5mm)
• Rod Diameter: 1/8" (3.2mm)
• Number of Rods: 9
• Thimble Type: Plain
• Lock Nut Type: Ring-type knurled
• Anvil/Spindle Type: Flat
• EDP: 52121
• Made in USA

The set includes 9 measuring rods and ships in a padded carrying case for organized storage and protection during transport. A trusted choice across manufacturing, aerospace, automotive, and inspection applications, the Starrett 440Z-9L is built to deliver decades of reliable service.