Last 17 pieces 211.1g 10mg-100g grams precision calibration weight set test jewelry scale

Improved 2021 version, this set contains 17 calibration weights in 13 different specifications. In addition to the calibration weights, the set also includes tweezers and a plastic storage box for easy use and storage. Our weights are cylindrical with raised sections at the top for easy gripping. Made from #45 steel, they offer higher strength and resistance to deformation than ordinary steel. Suitable for general laboratory use, industrial measurements, educational purposes, etc. The permissible error is -0.003 to +0.003 g.