Professional double-sided diamond bench stone, developed by James Barry. For sharpening plane irons, chisels and woodworking tools. Professional double-sided diamond bench stone.  Details: Width: 75mm (3") Length: 203mm (8") Grit:  1000 & 300 Precision ground substrate. Ground to +/- 0.005" making it perfect for plane irons and chisels up to 75mm wide. James Barry stones are guaranteed for 5 years if you use this lapping fluid. Clearly marked grit sizes on the stones surfaces for ease of recognition. Clearance channels have been made on the extra coarse side to clear away swarf and produce a keen edge fast and efficiently.   Product code: E8DBS