Technical Data:
Series: 148
Product type: Micrometer Head, Locking-screw Type
Feature: Enhanced spindle clamping force by locking screw
Application: Positioning equipment or instruments constantly exposed to vibration
Locking-screw position: Same as sleeve index line
Graduation features: Standard
Measuring face material: Alloy tool steel
Measuring-face hardness: 60 HRC or more
Measuring face: Lapped
Finish: Satin-chrome plated
Measuring range: 0 - 0.25 in
Graduation: 0.001 in
Stem diameter: 0.25 in
Stem: Plain
Spindle end: Spherical SR3
Accuracy: +/-0.00025 in

Dimensions:
Configuration: Plain stem, 6 mm / 0.25 in stem class
Representative drawing model: 148-220-10
Spindle Dia.=3.5 mm
Stem Dia.=6 mm, tolerance 0/-0.008 mm
Body Dia.=9.3 mm
Locking-screw Dia.=7 mm
Locking-screw reference height=4.6 mm
Reference dimensions=6 mm; 15 mm; 30 mm; 30.3 mm
Retracted reference dimensions=8.5 mm; 11.3 mm; 36.8 mm
Rear/reference detail=2.2 mm
Mass of representative model=16 g
Parenthetical dimensions apply with spindle fully retracted
Spherical spindle end radius=SR3