1/4" (6.5 mm) Travel


Micrometer Drives, 1/4" (6.5 mm)

  • 1/4" (6.5 mm) Travel Range
  • 0.001" (10 µm) of Travel per Division
  • Spherical and flat Tips
  • Available With or Without a 5/64" (2mm) Hex on the End


  • Chrome-Plated Polished Spindle
  • Knurled Adjustment Knob for Grip
  • Small Ø1/4" (Ø6 mm) Mounting Barrel
  • Durable Engraved Graduations for Easy Viewing
  • Versions with 5/64" (2 mm) Hex Available

The 148-206ST(-H) and 148-202FT(-H) micrometers provide a travel range of 0.250" and feature engraved graduations every 0.001", while the 148-205ST(-H) and 148-201FT(-H) micrometers provide a travel range of 6.50 mm with 10 µm spacing between graduations. Item numbers ending in -H incorporate a 5/64" (2 mm) hex, allowing them to be actuated in space-constrained environments.

These micrometers are available with two different tip geometries. The 148-202FT(-H) and 148-201FT(-H) micrometers feature a flat tip. The spherical spindle tip, available with the 148-206ST(-H) and 148-205ST(-H) micrometers, provides a single point of contact, which minimizes positioning alignment errors.

Item Number148-206ST(-H)148-202FT(-H)148-205ST(-H)148-201FT(-H)
Travel Range 0.250" 6.50 mm
Graduation 0.001" per Division 10 µm per Division
Distance per Rev 0.025" 0.5 mm
Tip Geometry Spherical
R = 0.12" (3.0 mm)
Flat Spherical
R = 0.12" (3.0 mm)
Hexa 5/64" 2 mm
Load Capacity 2 kg (Max)
Scale Surface Hard-Chrome Plating
  • Only the micrometers with item numbers ending in -H have a hex on the end.


Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

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