F1 are more precise than M1, with smaller permission error, F1 applied to the calibration accuracy of 0.01g-0.001g precision balance scales. F1 use 304 stainless steel, M1 use 2cr13 stainless steel. M1 are with adjust bar (at the bottom of the weights), F1 are without. Sent to other countries (Singapore postal packets, Hong Kong postal packets, Normal 15-35 days arrived).Within 3 days after you receive the items, we accept to return with the original tag only. We work 6 days a week. You can leave message at time and we will reply you in the first time. The item "F1 Grade 1kg-5kg Precision Stainless Steel Scale Calibration Weight Kit Set m #" is in sale since Monday, May 20, 2019.
This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Calibration Weights". The seller is "2016number4store" and is located in . This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Mexico, Australia.