Sword Blade
Blade typesSeparate 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 Sword Blade
- 01 Line Record plan-view line, any radius, zones, and measurement basis.
- 02 Section Describe each blade half rather than assuming a universal profile.
- 03 Edge Keep grind, finish, honing, and serration separate.
- 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.
Sword needs the ridge, blade half, and span recorded
The supported cue is a maker-specific thicker or ridged construction, sometimes over only part of the blade—not a universal power score, technique, or final edge.
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01 Side / plan view Open field
Blade line
Sword or partial-sword wording does not establish a straight or curved cutting line.
Leave openHeel-to-tip path, width, radius, and local transitions remain open.
This route does not settle the field; record it separately.
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02 End-on slice Maker-local
Cross-section
A thicker ridge- or mountain-like supporting section may cover all or part of the blade.
Leave openRidge height, faces, extent, taper, slice positions, symmetry, and partner blade remain model-specific.
Keep the term attached to the maker, model, language, and dated source.
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03 Magnified working edge Open field
Edge / grind
The final edge is separate from the reinforced body behind it.
Leave openGrind, finish, serration, condition, and service construction remain open.
This route does not settle the field; record it separately.
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04 Declared axis + view Source-scoped
Spatial curve
Pair end-on slices before and after any transition with a side view showing ridge extent.
Leave openWhich blade, ridge start and end, taper, slice locations, scale, and drawing datum remain open.
The route supports this vocabulary, within the cited source boundary.
Description
A sword blade is a maker-specific thicker or ridged blade construction intended to increase rigidity and transmit force toward the tip.
Sword Blade (剣刃–Ken-ba)
Quick look
- Geometry: A thicker, ridge- or mountain-shaped blade section described by makers as a rigidity feature
- Also called: Kenba, ken-ba, sword form; international catalogs use these names inconsistently
- Pairings: Sword with convex, sword with flat, and asymmetric pairings are all documented
- Verify: Which half is sword-shaped, the partner blade, edge grind, blade line, length, and maker service route
Why it matters
Kenba (剣刃) describes a sword-like construction with more section behind the blade face. Makers position that mass and ridge as a way to increase rigidity and transmit force toward the tip. Public material does not establish a universal force percentage, “maximum power” ranking, or fixed technique result.
Pairings and naming
Makers document sword forms paired with convex, flat, and other blade descriptions. Trade literature also uses one-sided and two-sided terms, but the exact construction is more reliable than the translated product name. A product called “sword” or “katana” may layer the marketing term onto another edge or section description.
Do not assume:
- both halves share an identical triangular section;
- every sword blade has a convex edge;
- sword geometry begins at one minimum length;
- a full/partial label predicts tip agility or total weight; or
- the name fixes a sharpening method.
Ridge extent and technique zones
Where makers describe a partial or semi-sword form, the reinforced section is usually placed toward the heel and the profile becomes lighter toward the tip, with the transition blended rather than abrupt. No cross-brand standard fixes how far the ridge runs, and the exact length and starting point vary by maker and model, so read them from the maker’s own diagram rather than assuming a fixed pivot-to-midpoint split.
That division is what suggests two working zones on a model drawn that way. The heavier heel section suits scissor-over-comb passes, blunt perimeter work on dense sections, and bulk removal, while the lighter tip suits point cutting, fringe detailing, and precision refinement where the blade has to enter a section at an angle. The zones follow the actual ridge extent, the partner blade, and the edge grind, not the sword wording on its own.
Model-level checklist
| Field | What to verify |
|---|---|
| Blade pair | Which half is sword-shaped, and what is the partner geometry? |
| Blade line | Straight, curved, or another maker-defined profile |
| Edge grind | Convex, flat/beveled, or a named maker finish |
| Dimensions | Published blade length, overall length, width, and mass |
| Intended use | The maker’s own positioning, without turning it into a universal hair-type rule |
| Service | The exact maker or authorized sharpener’s geometry-preservation instructions |
Test balance, reach, closing action, and control in the real technique. Set tension and maintenance by the model’s instructions, not a generic “firmer for sword blades” rule.
Sources and limits
Maker pages document sword forms paired with convex, flat and mixed constructions, in one-sided and two-sided pairings. They publish no universal ridge geometry, force percentage, length threshold or technique requirement. Ridge extent, mass, edge grind and partner blade are model-specific, so record them from the maker’s diagram and trial the complete shear. Retail and catalog uses of sword, katana and similar names are marketing vocabulary unless a drawing or an explicit blade-pair specification accompanies them.
See Also
Sources
2 sources- 🌐 Mizutani Scissors — Global (Japan HQ) (manufacturer official)
- Jatai — Sassoon 5-Point Reimagined (educational)
Frequently Asked Questions
3 answers you can open one at a timeWhat does the sword blade's reinforced spine physically do to the cutting action?
Makers describe the thicker, ridge- or mountain-shaped section as a way to increase blade rigidity and carry cutting force toward the tip. That is a design rationale, not a published force multiplier or a guarantee that every sword-marketed shear has the same section, pairing, or performance.
How does a full sword blade compare to a partial sword blade in terms of tip agility?
Full and partial sword are trade descriptions whose boundaries vary by maker. Do not infer tip weight, agility, or a technique hierarchy from the label alone. Compare the maker’s blade diagram, ridge extent, partner blade, edge grind, mass, and actual in-hand control.
What is the risk of using a sword blade on fine or damaged hair?
Kenba geometry alone does not prescribe a hair type or prove added damage. Assess the client’s fiber condition, the intended technique, section control, edge condition, and the exact model’s behavior. A sharp, correctly serviced tool and conservative test are more informative than a blanket fine-versus-coarse rule.
Comments & questions
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