Sword Blade
Description
Sword blade (kenba) scissors use Japanese sword geometry for maximum cutting power. Learn how this aggressive grind handles thick hair and dense sections.
Sword Blade (剣刃 – Kenba)
Quick look
- Geometry: Reinforced spine (shinogi) stiffens the blade for even power transfer.1
- Glide profile: Works best with convex edges—smooth entry but purposeful bite.1,2
- Technique wheelhouse: Scissor-over-comb, blunt foundations, dense section control.1
- Care level: Medium-high; keep tension dialled and rely on convex specialists for service.1,3
Why it matters
Sword blades adapt katana-inspired ridges to hairdressing shears. The raised spine resists torsion, so long or heavy-duty shears stay aligned from heel to tip. When paired with a convex edge, you get crisp, decisive closes through coarse hair without the blade flex that can cause push-out on standard profiles.1,2
Blade pairing & edge compatibility
- Convex (Hamaguri-ba): Maximises clean entry while the ridge supplies the power.1,2
- Semi-convex alternatives: Offer a touch more durability for barbers who punish tools daily.3
Technique map
- High-speed scissor-over-comb or bulk removal on dense, resistant textures.1
- Blunt perimeter work where you want a decisive, pinch-free close.1
- Detailed tapering: use the reinforced tip for consistent bite at longer lengths.1
Usage notes
- Oil and set tension slightly firm before heavy sections; the ridge works best when the blades stay perfectly mated.1
- Close through the section in purposeful strokes—let the spine carry the load while you guide with the comb.1
- Follow with light point work if you need to soften weight lines after the power pass.1
Maintenance
- Preserve the convex grind and ridge geometry—request convex-capable sharpening only.2,3
- Wipe, dry, and oil after every service; store closed to protect the tip alignment.1
- Keep tension in the sweet spot: loose screws invite push-out, over-tight screws fatigue your hand.1
Related blades: Partial Sword • Straight Blade • Willow Blade
Sources
Verified Sources
- Primary 🌐 Mizutani Scissors — Global (Japan HQ) (manufacturer official)
- Tertiary Jatai — Sassoon 5-Point Reimagined (educational)
Frequently Asked Questions
Sword blade (kenba) scissors use Japanese sword geometry for maximum cutting power. Learn how this aggressive grind handles thick hair and dense sections.
Sword blade (kenba) scissors use Japanese sword geometry for maximum cutting power. Learn how this aggressive grind handles thick hair and dense sections. The blade geometry affects how the scissors interact with hair during different cutting techniques.
Maintain Sword Blade blades by wiping after each client, oiling the pivot daily, and having them professionally sharpened by a technician experienced with this blade geometry. Proper tension adjustment is also essential for optimal performance.