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M2 Calibration Weight - 1 gram

My Weigh OIML Class M2
1 Gram Calibration Weight

Accuracy: +/- 3 mg

My Weigh OIML Class M2 1 Gram Calibration Weight
"In A Nutshell"
MaterialChrome plated steel
ClassOIML M2
Tolerance+/- 3 mg (0.003 g)

Product Details

This OIML Class M2 1 gram calibration weight has an accuracy of +/- 3 milligrams (0.003 grams). Use this calibration weight alone, or combine it with more weights to accurately calibrate your digital weighing scale.

Product Questions

Number of questions: 0

Product Reviews

Overall Customer Rating:
from 9 customer reviews.
Test weight is really great
I needed a small test weight for my reloading powder scale to be sure it measures my powder correctly. This 1 gram weight may be tiny, but it's exactly what I needed and as it turns out, the test weight verified that my scale was indeed accurate.
Reviewed by: Dan from NC on 6/4/2020
M2 Calibration Weights
I purchased the following M2 Calibration Weights for the purpose of checking my scales accuracy: 1 gram, 20 gram, 10 gram, and 5 grams. The M2 Calibration Weights are less accurate that my scales capability but provide what appears to be consistent reading. It is nice to be able to check my scales performance.

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Reviewed by: Donald from on 4/12/2019
Excellent Product and Great Service
Item I received was exactly as described and is an excellent product. My order was promptly shipped and I received it several days sooner than I expected when I placed the order. Overall, I am very satisfied with this purchase!
Reviewed by: RonT from Virginia on 8/17/2018
Tone arm
These people are so friendly! I have 2 scales for setting the tracking force on a phono cartridge, one digital, one mechanical. They disagree by 0.25 gm. Now I know which is true!
Reviewed by: Jim from New Jersey on 5/14/2016
Exactly as expected
Great price, item weighed well within tolerances. Personally using to verify/calibrate gun powder scales. Would recommend items to others.
Reviewed by: Levi from New York on 1/18/2016
M2 Calilbration Weight - 1 gram
Item is excellent. Fit right into my set where this was the only weight that was missing. It isn't brass like my set, but it fit the slot perfectly and completes my scale set. A great buy and glad I found this seller on the internet. This was the only place I could find what I was looking for.
Reviewed by: Stephen Rethemeyer from Morse Mill, MO on 6/18/2015
1 Gram Weight
This is exactly what I was looking for. Found out my scale is off three hundreds of a gram. And now I can prove it. Thank you!
Reviewed by: Art from Fresno, CA. on 6/23/2014
1 Gram calibration weight
The product is just what I had ordered, arrived timely and will contiue to consider purchases from oldwillknottscales
Reviewed by: Marshall from California on 2/19/2013
very good!
just what i needed. shipped very quickly! thanx
Reviewed by: marc from 60035 on 11/28/2012

We know you have a choice when you buy scales online. Just know that when you buy digital scales from Old Will, it's always a "Worry Free Deal".

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