19 pcs Calibration Weight Set 100g – 10mg With Tweezers And Presentation Box For Accurate Precision Balancing Of Digital, Jewellery, Diamond, Pocket, Laboratory And Other Scales

This product is a very good one

Very accurate. Nice container to keep them in.

The weights seem true. There is a sheen and smell of motor oil on them that stays on the fingers, have to wash hands after.

I love the convience of calibrating my scales immediately.

These are pretty mass produced-looking. Especially the fine milligram pieces. They are like "torn off" sheet metal pieces with a corner slightly bent over so you can pick them up. The stamping on them is almost illegible also. They test out fairly close on my calibrated beam scale, but aren't spot on. Fine for most basic uses, especially the 1g and larger pieces.

Bought these to verify a new electronic scale and they served my purpose very well.

It work as intended.

It has a good variety of weights.. awaits seem to be really accurate.. fast shipping

nice kit...arrived on time....little wafers are hard to remove once they are placed in their compartments

Weights are spot on. This was amazing value. The weights are actually nice looking and well engraved.

This is the least expensive set of check weights / calibration weights that I found on Amazon. The quality of the case, the foam padding in the lid, and the plastic tweezers are all comically bad. The weights themselves are not great. Several of them are precisely accurate to their stamped weight, but several of them are also over or under weight by more than the +/- 0.003g error listed in the item description. For example, the "10mg" piece actually weighed 15mg on a certified, calibrated, precision laboratory scale. All of that being said, this set cost less than $20CAD, rather than $2000+CAD for a traceable certified set. Depending on your requirements, this set may be fine.

Appears to meet regulatory requirements

Arrived with broken case and very cheap