Mitutoyo gauge block sets and surface roughness standard samples. The range has 5 gauge block sets and 2 roughness standard samples. Genuine Japanese-market stock. Ships from Japan with tracking. Import duties are included for US buyers; buyers outside the US pay their own duties and taxes.
Mitutoyo Gauge Blocks & Reference Standards guide: models and how to choose ↓
Mitutoyo Gauge Blocks & Reference Standards guide: models and how to choose
Which Mitutoyo gauge block set or reference standard should you buy?
For gauge blocks, check the grade and the size of the set. The table lists all 7 items. Values come from the specification table on each product page.
| Model | Type | Grade | Set size (listed as "Number of Sets") | Weight | Country of origin |
|---|---|---|---|---|---|
| BM1-32-1 (516-967) | Gauge block B | 1 | 32 | 0.426 kg | Japan |
| BM1-103-0 (516-942) | Gauge block A | 0 | 103 | 2.16 kg | Japan |
| BM1-103-1 (516-943) | Gauge block B | 1 | 103 | 2.158 kg | Japan |
| BM1-103-2 (516-944) | Gauge block C | 2 | 103 | 2.158 kg | Japan |
| BM1-112-2 (516-940) | Gauge block C | 2 | 112 | 2.176 kg | Japan |
| 178-601 | Roughness standard sample | Not applicable | Not applicable | 18 g | Not disclosed |
| 178-604 | Roughness standard sample | Not applicable | Not applicable | 35 g | Not disclosed |
"Not confirmed" means the product page does not state the value, so we do not claim it. The grade and set size of the BM1-103-0 come from Mitutoyo's BM1 series listing on MISUMI Japan. The two roughness standard samples list only a manufacturer code and a weight. Their roughness values are Not confirmed, so check with us before you order.
How to choose
- Grade: the BM1-103-0 is grade 0. The BM1-32-1 and BM1-103-1 are grade 1. The BM1-103-2 and BM1-112-2 are grade 2.
- Set size: 32, 103 or 112 pieces. The three 103-piece sets differ only in grade.
- Roughness standards: the 178-601 and 178-604 are sample surfaces for roughness checks. Their pages do not state a roughness value (Not confirmed).
To check a measuring tool against a reference, see Mitutoyo calipers and Mitutoyo micrometers. For roughness measurement, see Mitutoyo surface roughness testers. Not sure which tool you need? Read which Mitutoyo tool measures what you're working on. Browse everything from the brand on the Mitutoyo page.