Flexcut PW14 Knife Strop, with 1 Ounce Bar of … The Spyderco Bench Stone Sharpener is a ceramic stone … $20.55. This pocket stone fits in the palm and has both medium and fine grits packaged in a leather carrying case. SP303MF: Double Stuff Pocket Stone Spyderco. Spyderco's Double Stuff sharpener is a 303F and 303M bonded together and packaged in a leather pouch offering a variety of sharpening options. 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. Made from ultra-hard alumina ceramic material, Spyderco's ultra-fine-grit benchstone is used like a traditional sharpening stone, but does not require oil or water. It is autoclave safe (ideal for dental tool sharpening… While most sharpening stones require water or oil to be effective, ceramic ones don't require a cutting liquid, saving users an extra step while still offering quality sharpening. Its broad, flat surface is ideal for putting … Make Offer - Spyderco Slipstone Fine Grit White Ceramic Knife Sharpening Stone 307F Spyderco Tri-angle Sharpmaker Knife Sharpening System Kit (SS2050020) $59.99 Spyderco - Tri-Angle White Sharpening Stone with Ultra-Fine-Grit for Professional-Grade Finishing and Polishing - 204UF1 4.7 out of 5 stars 717.