Technical Data:
Product type: Depth Micrometer, Interchangeable Rod Type
Interchangeable rods: Yes
Application: Depth measurement over a wide range by changing rods
Reference face / measuring-rod relationship: Parallelism and rod zero-point error specified by model
Standard accessories: 301336 Spanner; 04GAA274 Spanner; 202863 Hex-Spanner
Series: 129
Display / reading type: Analog
Measuring range: 0 - 150 mm
Graduation: 0.01 mm
Base: 101.6 x 16 mm
Accuracy: 3 um
Base flatness: 2 um
Rod flatness: 0.3 um
Parallelism, reference face to measuring rod face: 7 um
Zero-point error of rods: +/-4 um
Number of rods: 6

Dimensions:
Measuring rod diameter=Dia.4 mm
Base width=101.6 mm where specified
Base width=63.5 mm on compact-base variants where specified
Base thickness=16 mm
Micrometer body reference diameter=Dia.18.3 mm
Reference body / spindle dimensions shown include 84.8 mm, 80.8 mm, 53 mm and 18 mm range reference