SDMAdequate for measurement of depth of hole with wide opening Please refer to the catalog for more specific dimensions and details. SDM: Specifications (Unit: mm) Model Measuring length Resolution Instrumental error Weight A B C D E SDM15 150 0. 02 [Division of 49 mm into 50 equal parts] 0. 03 250g 260 100 11 4 8 SDM20 200 270g 310 SDM30 300 0. 04 300g 410 SDM40 400 900g 580 180 16 5 11 SDM50 500 0. 05 950g 680 SDM60 600 970g 780 SDM100 1000 0. 07 1.
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