Sickle Blade

Blade types
Blade specification instrument

Separate the four blade fields that labels often collapse

A named blade type can combine line, section, edge, and pairing; record each field before comparing.
Apply to Sickle Blade
NAME ≠ WHOLE BLADE
Blade line Cross-section Edge grind Exact pairing
  1. 01 Line Record plan-view line, any radius, zones, and measurement basis.
  2. 02 Section Describe each blade half rather than assuming a universal profile.
  3. 03 Edge Keep grind, finish, honing, and serration separate.
  4. 04 Pairing Attach asymmetry and intended use to the exact model.

Do not inferA translated name, side photograph, silhouette, or one radius cannot prove the full geometry or predict performance.

Four-axis geometry record · Localized curve term

Sickle needs the bend location recorded

The route-specific cue is a strongly curved local zone, but the maker drawing must establish where it begins and how it continues.

  1. 01 Side / plan view Maker-local

    Blade line

    A stronger localized longitudinal curve is the family-level cue.

    Leave openBend location, radius, continuity, tip form, and measured zone remain model-specific.

    Keep the term attached to the maker, model, language, and dated source.

  2. 02 End-on slice Open field

    Cross-section

    The local line curve does not define the end-on body section.

    Leave openThickness, ridge, hollowing, support faces, and partner blade remain open.

    This route does not settle the field; record it separately.

  3. 03 Magnified working edge Open field

    Edge / grind

    Sickle wording does not establish the final working edge.

    Leave openGrind, finish, serration, condition, and service route remain open.

    This route does not settle the field; record it separately.

  4. 04 Declared axis + view Source-scoped

    Spatial curve

    Show the complete blade from one declared side view.

    Leave openScale, model length, bend datum, camera angle, and blade half remain open.

    The route supports this vocabulary, within the cited source boundary.

Orientation aid—not a tracing template. Curves, planes, spacing, and proportions are deliberately non-dimensional.

  1. IdentityMaker + exact model

  2. EvidenceDated source + declared view

  3. Open fieldsKeep every unsupported detail unknown

Description

Evidence-bounded guide to sickle-blade and kamaba wording. Verify the exact maker's category, bend location, blade line, section, edge, intended use, and service route.

Sickle blade (鎌刃, kamaba)

Kamaba combines Japanese wording associated with a sickle and a blade. In scissor catalogues, “sickle blade” can cue a stronger local curve or hook-like form, but the name does not establish one shared geometry.

Do not treat kamaba as proof of the fourth or most curved position in a national taxonomy. The maker must define what the term describes on the exact model.

Establish the maker’s category first

Reference table: Field, Question
Field Question
Original wording What Japanese term and translation does the maker publish?
Catalogue category Does the source call it a blade line, blade type, local curve, tip form, or model family?
Exact scope Which model, code, size, handed variant, market, and production period does it cover?
Declared view Is the drawing a side, plan, end-on, outer-face, or inner-face view?
Local curve Where does the bend begin and end, and is its continuity, radius, or control-point basis published?

If the source does not answer a field, leave it unresolved.

Keep the complete geometry separate

  • Blade line: full heel-to-tip path and any local bend in a declared view.
  • Body cross-section: end-on form of each blade half.
  • Edge or grind: the maker-stated working surface, finish, honing, or serration.
  • Inner geometry: relief, hollowing, contact lands, pairing, set, and current condition.
  • Tip and width: tip form, width distribution, transitions, and measurement basis.

Sickle wording cannot fill these fields by itself.

Compare sickle and bamboo-leaf wording

The names evoke different plant or tool shapes, but they do not form a universal curvature scale. Compare only when both models provide compatible evidence:

  1. the same declared view and orientation;
  2. the same heel-to-tip measurement zone;
  3. the same size and handed variant;
  4. drawings, coordinates, sagitta, radii, or control points with stated datums;
  5. separate section, edge, inner-relief, tip, and partner-blade records; and
  6. current sources tied to the exact products.

Without those fields, “more curved,” “more aggressive,” “stronger,” and “more precise” are unverified interpretations.

Evaluate intended use by exact model

A maker may publish an intended task or technique for a named sickle-blade model. Keep that claim attached to its source and limitations. A seller description or individual observation is a separate evidence layer.

For a controlled trial, record the exact tool and condition, user, task, approved practice material, setup, stop conditions, and observations such as control, push, fold, drag, effort, noise, and repeatability. Do not convert one trial into a family-wide hair-type or technique rule.

Service boundary

Sickle or kamaba wording does not prescribe tension, sharpening equipment, abrasive, angle, pass direction, reshaping, or service interval. Use current maker instructions and a provider who can document how the exact line, local bend, tip, section, edge, inner relief, pairing, and set will be preserved.

Quick clarifications

Frequently Asked Questions

3 answers you can open one at a time
What does kamaba mean in a scissor catalogue?

Kamaba (鎌刃) is commonly translated with sickle-blade wording. A maker may use it for a locally curved blade line, a broader blade type, a model family, or another construction detail. Preserve the exact term, category, drawing, model, market, and date.

Is sickle blade the fourth and most curved Japanese blade line?

Do not assume a universal four-line hierarchy. Compare exact-model drawings made from the same view and measurement basis. The bend location, continuity, radius, width, tip form, section, and edge remain model-specific.

Which hair type or technique is a sickle blade best for?

The family name cannot establish a hair-type prescription or technique result. Use the exact maker’s intended-use statement, inspect the complete geometry and condition, and evaluate the named model in a controlled trial within seller terms.

Community notes

Comments & questions

Questions or feedback on this topic? Add a comment below.

Last updated: July 30, 2026 · by