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📐 Elevate your precision game—because every micron counts!
The Mitutoyo 611201-531 Steel Rectangular Gage Block is a 1.0-inch ASME Grade 0 certified calibration tool made from high-carbon, high-chrome steel. It features laser-etched identification and nominal length markings, ensuring traceability and ease of use. Designed with a rectangular base for accurate wringing, this gauge block delivers industry-leading flatness, parallelism, and surface finish, making it an essential precision standard for professional measurement calibration.











| ASIN | B001OBX0YW |
| Best Sellers Rank | #270,144 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #64 in Gage Blocks |
| Date First Available | November 9, 2004 |
| Item Weight | 2.56 ounces |
| Item model number | 611201-531 |
| Manufacturer | Mitutoyo |
| Product Dimensions | 2.1 x 0.9 x 3.3 inches |
L**S
Nice gauge block
I use this gauge block to test my micrometers and calipers precision. Both of my equipment read exactly what was stated by Mitutoyos gauge block, so the block is accurate and so is my equipment. Overall, great block don't hesitate to buy if you are in need of one or more.
L**R
What's there to say, it's a gauge block
While just a chunk of metal it is great that it allows you to check various measuring devices to see how accurate they are as well as let you see the consistency of your measurements. Have a tool that's not performing as expected, use this gauge block. Have an operator that is not measuring correctly, test them with this gauge block.
S**S
A great little block to check devices.
We have a full set at work, and now i decided to add a few at home to just keep a check on my home devices. Can't go wrong with Mitutoyo high quality.
D**W
Best standard out there.
What can I say, its the best 1 inch of metal Ive ever bought, and measures true.
D**.
Not exciting but it works
OK, what to say about a hunk of metal. If you are a bit klutsy, like me, it's a very useful piece that allows me to practice my skill at correctly measuring or calibrating while using a caliper (you know who you are). :-)
A**N
Excellent gage block
Excellent gage block. The one inch dimension accurate beyond a 5 decimal place caliper's ability to measure. Comes with NIST traceable reference number.
B**K
Five Stars
Super, Mitutoyo tool were always made to precision and they still are. Just the tool I needed. Thank you.
M**R
What i needed
It came in original box with certification.It was used with only little wear. Needed to check micrometer.worked fine.
E**D
Measures exactly 0.5000” using the Mitutoyo digimatic caliper with repeatability across the entire block.
A**R
It's a Mitutoyo, NIST traceable, cerified, grade 0 gauge block. Enough said.
Trustpilot
3 weeks ago
2 months ago