The Makita 9924DB and the CR Laurence LD324 are the 3 x 24 portable sanders glass shops set up for edge work, and a shop that seams and refines edges on one of them polishes on it too. This ungritted cork belt is that polishing step: charged with cerium oxide slurry, it takes the fine matte left by a 400 to 800 grit silicon carbide belt t