Providing fast … This pocket stone fits in the … The Double Stuff is a 303F and 303M bonded together and packaged in a leather pouch offering a variety of sharpening options. The illustrated Spyderco Knife Sharpener is the Fine Spyderco Pocket Stone that features high alumina ceramic construction in a fine grit for professional grade finishing and polishing. The 303F Fine Grit Pocket Stone … Spyderco's Double Stuff sharpener is a 303F and 303M bonded together and packaged in a leather pouch offering a variety of sharpening options. Pocket Stones are available in fine grit (this listing) and medium grit. The fine grit Spyderco Pocket Stone … A suede storage case is included with this Spyderco knife sharpener. This fine grit Spyderco Pocket Stone is a small rectangular pocket stone for portable field use and honing small items. Spyderco’s Double Stuff pocket stone is double sided, offering a medium-grit (brown) stone on one side and a fine-grit (white) stone on the other. Two Grits On One Ceramic Pocket Stone. This pocket stone fits in the palm and has both medium and … Permanently joined by industrial adhesive, these stones … The same ceramic material as Spyderco's famous Triangular Rods, the Double Stuff combines both the medium and fine ceramic grits on one stone. SP303MF: Double Stuff Pocket Stone Spyderco.