Micrometer Recall
Problem in Dimensional Stability of 225mm Standard Bar for Micrometers
Recently, we have found that there is the possibility of dimensional error in the micrometer standard bar supplied with some micrometers or sold separately. As a result of this potential error, we will recall and replace the affected micrometer standard bars free of charge.
This recall affects only certain products produced within a defined time period. The information below defines the affected units. Some of them are packaged with new micrometers while others were sold individually.
As always, Mitutoyo strives to maintain the highest quality standards. We thank you in advance for your understanding and cooperation in the matter. We apologize for any inconvenience this may cause to you, our valued customer.
- ・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 afterDecember, 2016.
Products equipped 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 |
Fault description
The affected standard bars feature inadequate dimensional stability and might change their dimension to the negative due to faulty heat treatment.
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 will replace the affected micrometer standard bar (225mm) free of charge. Please contact your Mitutoyo sales office.
Inquiry
Please do not hesitate to contact your Mitutoyo sales office if you have any questions.