Information / Press Release
Mitutoyo Report
Regarding Counterfeit Products

Important Announcement

February 23, 2018

Problem in Dimensional Stability of 225mm Standard Bar for Micrometer

We thank you for your continued patronage of our products.
Recently, we have found that there is the possibility of dimensional error in the micrometer standard bar supplied with some micrometers and some sold separately. We apologize for any inconvenience this may cause to you, our valued customer. As a result of this potential error, we will recall and replace the impacted micrometer standard bars without charge.
This recall impacts only selected products produced within a defined time period. The information below will define the impacted standard bars. Some standard bars impacted are packaged with new micrometers while others were sold individually. Again, we apologize for this issue. As always, Mitutoyo strives to maintain the highest quality standards. We thank you in advance for your understanding and cooperation of the matter.
■Object Product
・Product name
Micrometer standard bar (225mm)
・Model No.
・Order No.
・Serial No.
Refer to the following table.
Serial No. 6047077 to 6047256
6047370 to 6047371
6048270 to 6048332
6048349 to 6048465
6049007 to 6049148
6049150 to 6049187

*Object products are those delivered in and after December, 2016.

・Products coming with the micrometer standard bar (225mm)
Product Order No. Model No.
Micrometer 103-146 OM-250
103-146-10 OM-250
103-914-40 OMST1-300B
103-914-50 OMST1-300C
103-915 OMST2-300
103-915-10 OMST2-300
104-136 OMC-300
104-136A OMC-300
104-141 OMC-300
104-141A OMC-300
111-124 SPM-250
122-110 BLM-250
123-110 GMA-250
124-182 GMB-250
143-110 OMP-250
Digimatic Micrometer 293-255-30 MDC-250MX
340-252-30 OMC-300MX
Micrometer standard bar set 167-903 MBST-275
■Description of Trouble
The impacted standard bar has the possibility for changing its dimension in the negative direction by causing a secular change due to a heat treatment error.
If the micrometer zero point is adjusted using a dimensionally-changed micrometer standard bar, the result of zero-point adjustment will be affected adversely.
We would like to replace your object micrometer standard bar (225mm) with a substitute without charge. Please contact the nearest Mitutoyo sales office.
Please do not hesitate to contact the nearest Mitutoyo sales office if you have any questions.