Review on 10mg/100g Precision Stainless Steel Jewellery Calibration by Bud Crabtree

I haven't tested them to be very accurate but if they don't work normally you can adjust them if you have access to a certified scale. The set is beautiful and comes in a box with points for each weight. The tweezers aren't very useful and the latch on the box isn't secure, so I wear a hair tie around it so it doesn't open if knocked over or dropped in my race box. Otherwise, the weights are fine and, as mentioned, can be adjusted if necessary. I think it's a good deal for the price. You will be surprised how tricky some circuits and drivers can be. Each class has a weight they must weigh at least that much with the body. Therefore, it is important to know that each scale is read correctly. They even check the resistance of the motor windings to make sure they're fine and you'd be surprised how much heat can change the armature resistance so even gauges are checked weekly or when there's a dispute. Overall I think they are good deals.