Petty — The Utility Knife

What it is

The petty (ペティ, from the French petit) is a small double-bevel utility knife, typically 90–150mm, bridging the gap between a paring knife and a chef's knife. It handles detail work too fine or fiddly for a gyuto: peeling, trimming, segmenting citrus, slicing shallots, garnishing, and any in-hand cutting away from the board.

The science & materials

The petty is, essentially, a miniature gyuto: double-bevel, thin, hard, keen. Its short length trades reach and power for control and maneuverability, letting the cook make precise cuts in the hand or on small items where a long blade would be clumsy. The same thin, hard Japanese steel that makes a gyuto keen makes a petty exceptionally precise for fine work — and equally chip-prone if misused.

How it's used

Used both on the board (for small, quick prep) and in the hand (peeling, coring, segmenting), where its short blade and fine tip give the kind of control a chef's knife can't. The longer petties (140–150mm) function as a small chef's knife for tiny kitchens or light tasks; the shorter ones (90–120mm) lean toward paring duties.

Regional & cultural traditions

The petty is squarely in the modern Western-influenced family (the very name is borrowed French), the small-knife member of the gyuto/sujihiki group rather than a traditional single-bevel form. It is universal in both Japanese and Western professional kitchens as the everyday utility blade.

Cultural & historical context

Like the gyuto, the petty entered Japanese cutlery through Western contact and was rebuilt in Japanese steel — its French-derived name marking that lineage as plainly as "gyuto" marks the influence of beef-eating.

Reference notes

The small-work partner to the Gyuto and Santoku; the Japanese counterpart to the Western paring/utility knife. Cross-link to Gyuto, Santoku, and VG-10.

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When to use

Choose a petty as the second knife in nearly any kit — the precision complement to a gyuto or santoku. Over a Western paring knife, choose it for keener Japanese steel and a bit more length and versatility; over a chef's knife, choose it for everything small, in-hand, or detailed.

What goes wrong

Being short, it is wrong for big jobs (large vegetables, long slices) — using a petty as a primary chef's knife is slow and frustrating. Like all thin hard Japanese blades it chips on bone, frozen food, or board abuse; the fine tip bends or snaps if pried.