I buy this sander sight unseen . I be look for something that be lightweight and could be use for more than just floor . the 1274dv 6.6 amp belt sander be well make , affordable , and best of all rectangular and flat side so that it can clamp or lie on its back as a fix sander . I have have no need to make any adjustment to the belt . the dust exhaust adapter do not fit my ShopVac small hose wand , be a little too small inside diameter , but the hose itself fit over the exhaust port and work extremely well , virtually no dust . I can not speak for commercial application , but for the typical home workshop , you simply can not go wrong . I buy the sander with the case , which I highly recommend . it will hold several belt and a small extension cord .