Shop rolls are also known as utility or handy rolls and usually come in a dispenser pack, designed to be torn to any length. They are used for deburring, cleaning, and polishing on metal and wood. Rolls can have a cloth or paper backing, or can have abrasive coating on both sides. Waterproof rolls are available for wet sanding. They typically have a closed coat type. Common abrasive materials include aluminum oxide and silicon carbide. Choose from very coarse to ultrafine grade, or corresponding grit, depending on material being worked and level of precision required.