Description: F1 Grade 1mg-1Kg Stainless Steel Calibration Weight Kit F1 grade 1mg-1kg stainless steel scale calibraiton weights kit sets, balance weights. Total 25 pcs weights, use 304 stainless steel. Packed in aluminium alloy case. 1x 1mg weights 2x 2mg weights 1x 5mg weights 1x 10mg weights 2x 20mg weights 1x 50mg weights 1x 100mg weights 2x 200mg weights 1x 500mg weights 1x 1g weights 2x 2g weights 1x 5g weights 1x 10g weights 2x 20g weights 1x 50g weights 1x 100g weights 2x 200g weights 1x 500g weights 1x 1000g weights 1x tweezer 1x aluminium alloy case What's the difference between our F1 and M1 Weights: 1. F1 are more precise than M1, with smaller permission error 2. F1 use 304 stainless steel, M1 use 2cr13 stainless steel 3. M1 are with adjust bar (at the bottom of the weights), F1 are without.
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