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.
- MB-225
- ・Order No.
- 167-109
- ・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.
■Remedy
We would like to replace your object micrometer standard bar (225mm) with a substitute without charge. Please contact the nearest Mitutoyo sales office.
■Inquiry
Please do not hesitate to contact the nearest Mitutoyo sales office if you have any questions.