The G-tac three-step polisher, item number 10-8327, is a must have for your detail polishing jobs. It comes in a pack of 5 with grits in three step levels:  800 blue, 1500 white, and 4000 gray.  The unique feature of this polishing system is the shape that makes it ideal for touch-ups in specific areas of a ring, bracelet, or any intricately designed piece.  This product is essential to have at your bench for those really difficult and hard to reach areas. The G-tac three-step polisher. For more information you can always contact our Tools Tech Team by phone at extension 4300. They're available to answer your questions on all the tools products offered at Stuller.