SC306UF Spyderco Bench StoneThe 306UF is a compact 8 1 8" x 3" bench stone built from high alumina ceramic in ultra fine grit, designed for final edge refinement and maintenance honing rather than aggressive stock removal. Its thin 1 4" profile and modest footprint make it practical for bench use without demanding excessive space, while the durable ceramic construction resists glazing better than traditional whetstones. The included suede leather carrying pouch adds portability