Developed By James Barry Sharpening. Professional double-sided credit card stone, ideal for sharpening carbide and HSS. Specification: Grit: 300 & 600 Width: 50mm Length: 85mm Thickness: 16.mm Use James Barry Sharpening original formula lapping fluid to get your 5 year guarantee.   Unique and Robust This precision credit card stone is perfect for precision honing and gaining the keenest edge. Superb for getting the keenest edge on small fluted, shaped turning and carving tools. The unique 1.6mm thickness of the credit card stone gives you fantastic stability and rigidity, preventing the "flexing" that typically occurs with cheaper versions. 3" x 2" (85 x 50 mm) 1.6mm thick, fine and extra-fine 300 and 600 grit comes complete with blue storage wallet. These stones are used by professionals worldwide and are regarded as being the best product in their class. "Great little stone that very quickly will breathe new life into your cutters." Mr PJ Sibley "I tried it on two Freud panel raising router bits and it really gives it an excellent edge. I also tried it on some other carbide router bits and works great." Errol     Product Code - ECCFC