Boride CS-WX Stone 6" x 1"

Boride CS-WX Series stones are premium sharpening stones made of silicon carbide in a hard vitrified binder. Designed for slow breakdown and long service life, CS-WX combines aggressive cutting speed with a more controlled sharpening feel than conventional coarse silicon carbide stones.

Unlike Boride CS-HD, which is optimized primarily for heavy stock removal, CS-WX delivers a cleaner scratch pattern and smoother tactile feedback at the same grit level. This makes CS-WX suitable for reprofiling, bevel correction, and intermediate sharpening of hard stainless steels, tool steels, and other wear-resistant alloys.

CS-WX is the first Boride silicon carbide series specifically well suited for use with light honing oil. Oil improves swarf evacuation, reduces surface loading, and gives the stone a smoother, more controlled feel on guided sharpening systems.

Boride CS-WX stones are mounted on high-quality aluminum blanks in standard Edge Pro form-factor, making them compatible with Hapstone, TSProf K03, Kadet, Pioneer, Work Sharp Precision Adjust with adapter, and many other guided knife sharpening systems.

Boride CS-WX stones should be used with oil or soapy water. Do not use the stones dry.

Oil Behavior

Oil Behavior describes how a sharpening stone interacts with oil during use. The property is especially important for vitrified and resin-bonded stones because oil can either remain on the working surface or be absorbed into the stone body. Oil behavior affects sharpening feel, swarf evacuation, loading tendency, maintenance, and long-term stone cleanliness.

Oil-retentive stones keep a stable lubricating film on the surface during sharpening. This improves swarf mobility, reduces surface drying, and creates a smoother, more consistent sharpening feel. Oil-retentive stones are suitable for long-term use with honing oil.

Oil-wicking stones rapidly absorb oil into the internal structure through capillary action. The working surface dries quickly, swarf removal becomes less efficient, and oil contamination may become difficult or impossible to remove completely. Oil-wicking stones are generally better suited for water-based sharpening.