DIGIT FRIABILITY TEST APPARATUS (SINGLE DRUM) – GUPTA BRAND 5000LT71 Posted on March 3, 2017September 21, 2021 by admin Measure obession Strenth of tablets with programmable timer.Rotation Speed 25 rpm +_ 1 , auto & manual mode of operationn with 1 acrylic drums. Result are display on 3 digits led display and its has a 3 digit preset able control.