Manual Micrometer Heads, 50 mm Travel

  • 50 mm Travel Range
  • 10 µm of Travel per Division
  • Spherical Tip Minimizes Positioning Alignment Errors
  • Available With or Without 5/64" (2.0 mm) Hex on the End


5/64" Hex

Application Idea

The XR50P Quick Connect Translation Stage
incorporates the 151-411ME-H Micrometer.

Related Items

Please Wait
Item # 151-411ME 151-411ME-H
Travel Range 50.00 mm
Graduation 10 µm per Division
Distance per Rev 0.5 mm
Barrel Diameter 3/8" (9.5 mm)
Hex N/A 5/64" (2.0 mm)
Load Capacity 4 kg (Max)
Scale Surface Hard-Chrome Plating


  • Chrome-Plated Polished Spindle Improves Accuracy
  • Knurled Adjustment Knob for Grip
  • Standard Ø3/8" (Ø9.5 mm) Mounting Barrel
  • Engraved Graduations for Accurate Alignment
  • Version with 5/64" (2.0 mm) Hex Available

These micrometers provide 50.00 mm of travel range with 10 µm spacing between graduations. The 151-411ME-H micrometer incorporates a 5/64" (2.0 mm) hex allowing it to be actuated in space-constrained environments.

The spherical spindle tip provides a single point of contact, which minimizes positioning alignment errors. Thorlabs can integrate this micrometer into many of our standard products; please contact Tech Support for details. We also offer the RBA1 Barrel Adapter to increase the barrel diameter to 1/2" (12.7 mm).

50 mm Micrometer Drawing
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50 mm Micrometer Drawing
Click to Enlarge

Hex on Micrometers with Item Numbers Ending in -H

Posted Comments:
Kaveri Jagtap  (posted 2023-02-03 16:59:47.75)
Hello there, i wanted to ask if i can attach this to XYZ stage MBT616D provided by the thorlabs to get higher motion range? best, Kaveri
cdolbashian  (posted 2023-02-17 11:38:09.0)
Thank you for reaching out to us with this inquiry Kaveri. Unfortunately the actuator is not the only thing limiting the travel range of this device, and thus a simple actuator replacement will not change the max travel in a way which you envision. I have contacted you directly to discuss possible alternatives.
Adam  (posted 2010-04-06 09:42:04.0)
A response from Adam at Thorlabs to neili: I have spoken to our Thorlabs France office and they will send you a quote immediately.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Metric Price Available
151-411ME Support Documentation
151-411ME50 mm Travel Micrometer Head with 10 µm Graduations, Spherical Tip
151-411ME-H Support Documentation
151-411ME-H50 mm Travel Micrometer Head with 10 µm Graduations, Spherical Tip, 2.0 mm Hex
Last Edited: Sep 12, 2013 Author: Kate Osenbach