What angle are Shun knives sharpened at?

Per side, not total

Shun sharpens its double-bevel knives to 16° per side (32° total included angle) according to Shun's own FAQ. One model breaks from the pattern: the Classic Western Cook's Knife, ground to 22° per side (44° total). Every other double-bevel knife in the lineup is at 16.

Knife sharpening angles are stated per side in nearly every case. When Shun says 16°, it means 16° on the left bevel and 16° on the right — 32° of included angle at the tip. A sharpener block set to 15° produces a 30° included angle, not a 15° one.

Several third-party sources list Shun at 15° per side. Shun's own FAQ puts the figure at 16. When the two disagree, use the maker's number.

Shun angles by knife type

Nearly the entire lineup shares one angle. The Classic Western Cook's Knife is the outlier, ground to a wider German-style edge.

Both figures from Shun's FAQ. For angles across brands side by side, see knife sharpening angle chart.

What a 15-degree block does to a 16-degree edge

A fixed-angle block at 15° sits 1° finer than Shun's factory edge. On the first sharpening pass, the block grinds away a narrow wedge of steel until the bevel conforms to 15°. After that session the edge holds at 15° — 1° sharper than it left the factory. Every subsequent pass maintains that geometry without any further angle change.

A 20° block sits 4° wider than factory and reshapes the bevel more aggressively. The 15° end is the closer match for Shun's standard double-bevel lines.

Shun's single-bevel knives

Shun makes single-bevel knives alongside its double-bevel lines. A single-bevel blade is flat on one face and ground on the other only. Running a fixed-angle block equally on both sides turns a single-bevel knife into a symmetric double-bevel edge — permanently altering its geometry. Single-bevel Shun knives belong on flat stones or with Shun's sharpening service, which lists them as a separate category from double-bevel work.

To confirm whether a Shun knife is single-bevel: hold the blade flat under a light and look at the back face. A true single-bevel has no secondary grind there: the face is flat from spine to edge.

Honing between sharpenings

Shun treats honing and sharpening as different jobs. Its ceramic rod removes material and belongs in the sharpening category: use it sparingly. Diamond steels remove material faster still and are sharpening tools, not honing tools. For routine maintenance between full sharpenings, Shun recommends a smooth honing steel — it tunes up the edge without grinding a new bevel, though it will not restore a knife that has gone dull.

Which block face for each Shun line

The Rollkeen rolling sharpener has two ends: 15° for Japanese and thin-ground blades, 20° for German and Western knives. For Shun's standard double-bevel lines, set it to the 15° end. The 400-grit diamond disc resets a neglected edge; the 3000-grit ceramic disc polishes the bevel. The finished edge sits at 15°, 1° finer than factory.

Shun's Classic Western Cook's Knife, ground to 22° per side, is 2° from the 20° face and 7° from the 15° face — set it on the 20° end. That puts the block 2° finer than Shun's 22° factory geometry, a closer match than the 15° end would be.

Do not use a rolling sharpener on Shun's single-bevel knives. For more on thin Japanese blades as a category, see Japanese knife sharpening angle.