Spyderco Double Stuff 303MF Ceramic Sharpening Stone 5" Medium/Fine

The Spyderco Double Stuff (Model 303MF) is a compact, pocket-sized sharpening stone that puts a useful edge back on your blades in the field, at camp, or at the bench. Two ceramic stones are bonded together to deliver a medium grit on one side for reshaping and re-establishing a working edge, and a fine grit on the other side for finishing and polishing, all in a single slim 5" package.

Spyderco manufactures this stone using their proprietary Alumina Ceramic process - a bonding agent combined with alumina particles, made in the USA. The medium (black) side handles routine edge maintenance and light re-profiling, while the fine (white) side refines and polishes to a clean, sharp finish. The Double Stuff is designed to be used dry, without oil, for quick, predictable results on pocket knives, folding blades, hunting knives, and small fixed blades.

At 5" long, the Double Stuff slips easily into a pack, pocket, glove box, or kitchen drawer, yet offers enough surface length to lay a useful stroke along the length of most everyday blades. A fitted leather sheath is included to protect the ceramic surface from chips and to keep it from damaging other gear during carry or storage.