This instrument is specially to determine the durability of tablets from the time of production to the time use, as its is important to test abrasion and impact hardness of the tablets. The apparatus consist of transparent acrylic drums. The drums are equipped with a plastic blade which carries the tablets along with it up to predetermined height while the drums are rotating and tablets are allowed to slide and let them slide down. The tablets are weight before and after the rubbing in the drum have taken place. The Difference in weight indicates the rate of abrasion. This attachment can be mounting on Universal Gear with Our Main Drive. Main Drive is equipped with Digital display system. The switches are provided on the front panel of the Main Drive for setting the required total number of revolution of the drum which rotates at 25 revolutions per minute. Each revolution of the from starting from minimum number 1 to required set number to 9999 is displayed on The timer as per pre-setting.