High Precision Manual Micrometer Head, 10 mm Travel

  • Utilizes a 250 µm Pitch Leadscrew
  • Spherical Tip Housed by a Ø3/8" Barrel
  • Sensitivity Better than 1 µm





Our MT Series Translation Stage
Incorporates a 146-200 Micrometer

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High-Precision Micrometer


  • Range: 0 - 10 mm
  • 5 µm per Division
  • Sensitivity: Better than 1 µm
  • Standard Ø3/8" Barrel Diameter
  • 250 µm per Revolution

The 146-200 is a high precision micrometer head that utilizes a lockable 250 µm pitch leadscrew. The graduated dial and linear scale on the micrometer barrel provide a calibrated readout of displacement. A spherical tip is provided to ensure a single point of contact between the adjuster and the mating surface.

Posted Comments:
Tomas Fuenzalida  (posted 2023-03-16 14:14:21.137)
Is there a HEX nut on the thimble for space-constrained applications? I would like to attach the thimble to a stepper motor. What sort of attachment would you recommend? Could you send a custom version with a thimble end consisting of a 5 mm diameter rod?
jdelia  (posted 2023-03-24 01:07:07.0)
Thank you for contacting Thorlabs. There is a hex key socket on the end of the 146-200 micrometer. Regarding the rest of your inquiries, I have reached out to you directly to discuss your application.
Cristina Amaya  (posted 2022-05-25 14:57:36.977)
Hello, can I use these high precision micrometers with the PY005/M 5-Axis Stage? Best regards, Cristina
jdelia  (posted 2022-05-25 03:24:17.0)
Thank you for contacting Thorlabs. Unfortunately, the 146-200 micrometer cannot be used with the PY005/M stage. The micrometer uses a 3/8" mounting barrel, while the actuator screws in the PY005/M are 3/16"-100 threaded.
user  (posted 2019-12-18 02:33:33.727)
Hello, is this item suitable for the adjustment of cylinder end stroke? The force applied will be 300N. If not, do you have any recommendations for fine adjustments of cylinder end stroke that can withstand a force of 300N? The accuracy needed is 0,01 mm. Best regards from Slovenia!
llamb  (posted 2019-12-18 04:30:50.0)
Hello, thank you for your feedback. The 146-200, as well as our other fine pitch adjusters, are not designed for such high loads. Our micrometers and adjuster screws utilize a V-shaped thread type, while you would likely need a trapezoidal thread profile, such as an Acme thread, for translating a 300 N load.
chin-eu.yeap  (posted 2017-05-12 18:26:13.55)
how i get this item at Asia ,Malaysia
tfrisch  (posted 2017-05-17 03:56:19.0)
Hello, thank you for contacting Thorlabs. A sales representative will reach out to you about quoting details.
garth.mindermann  (posted 2015-10-26 10:00:48.153)
I just want to verify what the fully extended length is and the fully contrated length is on the 146-200, from one end to the other. Thanks much!
jlow  (posted 2015-10-27 11:42:17.0)
Response from Jeremy at Thorlabs: The total length of the micrometer does not change. The only thing that changes is the distance between the end to the mounting barrel. You can see the drawing for 146-200 at http://www.thorlabs.com/thorcat/3100/146-200-AutoCADPDF.pdf, which shows the view at the minimum position.
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+1 Qty Docs Part Number - Universal Price Available
146-200 Support Documentation
146-200High Precision Micrometer Head, Range 0-10mm, 5µm/Division