The double-sided Extreme Pocket Stone File, developed by James Barry. Perfect as part of your every day kit to keep your pocket or bush blades in top condition. This stone is the ideal stone to accompany the outdoor pursuit enthusiast to enable quick sharpening of blades etc whilst in the field. The 180 grit side of the stone is for heavy stock removal, reshaping or grinding an edge. The 1000 grit side is for putting the razor edge on the blades after the initial stock removal. The plate is 1.6mm thick to prevent flexing. Combing a rapid removal and final honing for the Outdoors and Woodturning. Dimensions: 5" x 1" (125mm x 25mm) 1.6mm thick Guaranteed for 5 years if used with James Barry Sharpening Original Formula Lapping fluid