Technical Data:
Series: 148
Product type: Micrometer Head, Small Standard Type
Measuring face material: Alloy tool steel
Measuring-face hardness: 60 HRC or more
Measuring face: Lapped
Finish: Satin-chrome plated
Measuring range: 0 - 13 mm
Graduation: 0.01 mm
Accuracy: +/-2 um
Stem diameter: 9.5 mm
Stem: Plain
Spindle end: Flat
Graduation features: Reverse reading
Spindle lock: No
Spindle pitch: 0.5 mm

Dimensions:
Plain-stem reference:
Spindle Dia.=5 mm
Stem Dia.=9.5 mm, tolerance 0/-0.009 mm
Body Dia.=13 mm
Reference dimensions=9.5 mm, 14 mm, 27 mm and 31.5 mm
Retracted overall reference dimension=44.5 mm
Set screw
Mass=30 g