Technical Data:
Series: 152
Product type: Micrometer Head, Large Thimble Type
Feature: Large-diameter thimble for fine adjustment and positioning
Measuring face: Carbide tip
Measuring-face hardness: 90 HRA or more
Measuring face: Lapped
Scale finish: White anodized aluminum
Measuring range: 0 - 25 mm
Graduation: 0.002 mm
Graduation features: Standard
Stem diameter: 12 mm
Stem: Plain
Spindle end: Flat (carbide tip)
Spindle pitch: 0.5 mm
Accuracy: +/-2 um

Dimensions:
Plain stem configuration
Spindle Dia.=8 mm
Stem Dia.=12 mm, tolerance 0/-0.011 mm
Thimble Dia.=49 mm
Reference dimensions=29 mm; 63 mm; 66 mm
Retracted reference dimensions=38 mm and 91 mm
Speeder
Mass=310 g
Parenthetical dimensions apply with spindle fully retracted