RUPES Coarse Waffle Pad is the most aggressive option when it comes to pads in the RUPES rotary pad line. The design and the material of the RUPES Coarse Waffle Pad are made to optimize cutting action, while still delivering a quality finish. What's great about the RUPES Coarse Waffle Pad is the design. These pads have a waffle pad face that provides rotational stability while also reducing heat build-up on the pad face that is common with rotary polishing. This will make sure your rotary polishing process is much smoother and more comfortable. RUPES Coarse Waffle Pad are meant to be used with rotary polishers like the RUPES BigFoot LH19E Polisher. Use these pads with the RUPES COARSE Rotary Compound to really rid your surface of those moderate to severe defects. 5.5 inch pads require a 5 inch backing plate.6.5 inch pads require a 6 inch backing plate.