PSA Diamond Smoothing Discs Dimensions:220 Includes a stackable cover to

Includes a stackable cover to protect against dust and dirt

The adhesive line-bonds slowly for excellent adhesion of stones to findings

8mm ball end

any given gem may contain natural impurities but will offer excellent color and light-play

The immersion quartz heating system with feedback thermocouple ensures efficient heating and consistent temperatures throughout the tank

PSA Diamond Smoothing Discs Dimensions:220 Includes a stackable cover toAttach this self adhesive diamond smoothing disc to an 8" backing plate to cut, smooth and refine the finish of metal or stones. This disc is ideal for Hi Tech Diamond and Dura BULL equipment for both lapidary and metalworking applications. Diamond discs should be used wet to reduce heat buildup and loading.