HFS(R) Calibration Weight Set 1000g with Case and Tweezers for Digital Scale, Gram Scale-M2 Class 8pcs 10g,20g,20g,50g,100g,100g,200g,500g

⭐⭐⭐⭐⭐The HFS(R) Calibration Weight Set is an exceptional tool for anyone needing precise weight measurements for calibration or testing. The 1000g weight is impressively accurate and comes in a well-designed case that keeps everything organized and protected. The weight itself is solid and robust, providing reliable performance for ensuring the accuracy of scales and other measurement instruments. The case is durable and compact, making it easy to store and transport the weights safely. For professionals and hobbyists alike, this set delivers the precision and quality needed for accurate calibrations. If you require dependable weights for your measurement tasks, the HFS(R) set is a top-notch choice. Highly recommended!

Worked great on my work scales. Great price.

Good buy, works great, easy to use, true to weight

Some oil or other marks on some of them, but this is a $20 set. They seem more accurate than my kitchen scale can measure. I will use them to calibrate my scientific scale. If you're reading Amazon reviews to determine if standards are good enough for your purpose these are good enough.If you bought a scientific scale because you needed a scale that could do tenths of a gram for pinewood derby weights like me, this is a good set for calibration as well as using for a lesson on weights, measures, standards, accuracy, precision, and taking measurements for lab purposes.

I used this set of weights to confirm the readings of small scales. Reasonable accuracy for general application.

For most of us using this we're calibrating a consumer-level weight scale. We're not scientists with their thousands of dollar calibration weight sets. So with that said, this unit is more than acceptable for what we regular people are using it for. It is the weights they state, so what more could I want? I think the price is great, and it works well for its intended purpose. Oh and the tweezers they include are not that strong.. They do not want oil from your hands to touch the weights (corrosion).. so just use a paper towel or tissue when you pick them up. Other than that I'm glad that an affordable kit is out there!

Please consider the price of this item as you read the following review.Using a Radwag 82/220R.2 Analytical Balance calibrated with an external 100 g ASTM Class 0 reference calibration weight (+/- 130 ug), I tested the weights of the items in this set. They registered as follows:10g - 10.00159 g20g #1 - 19.99577 g20g #2 - 19.99664 g (top pin was slightly tilted due to being loose in the box)50g - 49.99365 g100g - 100.0078 g100g - 100.0080 g200g - 200.0068 g500g - 500.00 g (This item was outside the measurement range of the scale and was compared on a calibrated centigram scale to be accurate to decimal places when compared to a 500g ASTM Class 1 reference weight).So, for the most part this is an ASTM Class 6 set with some weights having enough deviation to fall into ASTM Class 7 (IOLM Class M2). In other words, about as inaccurate of a calibration set as you can buy, at least with regard to ASTM calibration classes (7 is the worst). But, for the price it is a decent set for low accuracy (i.e., every day/mere mortal) scale calibration of scales that go down to centigrams.

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