Designed for long throw polishers specifically, the Heavy Duty Orbital (HDO) line was created to offer more durable and performance enhancing characteristics.nbsp;In line with our HDO Foam pad design, wersquo;ve added the advantages of a tapered profile to our famous Microfiber pads.nbsp; Having a tapered profile increases your options, opening up a wider range of appropriate cutting and polishing techniques (such as slight tilting), as well as improving access in tighter spots while simultaneously creating a safer buffer zone around your backing plate.