Manufacturing Processes

A professional scissor passes through 170-200 individual manufacturing steps before it reaches your hand. That number comes from OEM production documentation and explains something stylists feel every day but rarely see: the gap between a $50 shear and a $2,000 one is not marketing — it is mostly process.

Two scissors can start from the same steel alloy and end up worlds apart because of how they were shaped, hardened, ground, assembled, and inspected. Understanding the production chain helps you judge whether a price tag reflects genuine craftsmanship or a brand sticker on commodity metalwork.

The production chain at a glance

1. Hot Forging (鍛造) — Red-hot steel hammered into shape. The premium method that refines grain structure and produces the densest, strongest blanks.
2. Cold Stamping (冷間プレス) — Blanks punched from flat sheet steel at room temperature. Faster and cheaper, but without the structural benefits of forging.
3. Investment Casting (精密鋳造) — Molten steel poured into ceramic moulds for complex shapes. Lower tooling cost, but porosity risks limit strength.
4. Two-Piece Welding (二枚合わせ構造) — Hard blade steel welded to a tougher handle material so each component uses the optimal alloy for its job.
5. Heat Treatment (焼入れ・焼戻し) — Quenching, tempering, cryogenic processing, and vacuum hardening that set final hardness and edge stability.
6. Quality Control & Production Systems — The workshop systems, inspection steps, and OEM realities that determine whether all those processes actually deliver a consistent shear.

Why this matters to working stylists

When a manufacturer says “hand-forged in Seki City” or “cryogenically treated,” those are not empty phrases — they point to specific steps in this chain. A forged blank that has been vacuum-hardened, cryo-treated, and hand-finished by specialist craftsmen will cut differently from a stamped blank that went through a conveyor oven, and you will feel the difference within a week of daily use.

Use these pages to decode spec sheets, ask sharper questions of sales reps, and make confident purchasing decisions based on what actually happens to the steel before it lands in your kit.

Sources

• S2 Hasami — Production Flow 製作工程 (Japanese)
• Razorline — Professional Hair Scissors Manufacturing (English)
• Mizutani Scissors — About Mizutani (English)
• sint.co.jp — Forging vs Casting 鍛造とは (Japanese)

Keep exploring

• Steel Types — The raw materials that enter these processes.
• Edge Types — The grinding stage that shapes the cutting geometry.
• Manufacturing Regions — Where these processes happen and why location matters.
• Finish Types — Surface treatments applied after forming and heat treatment.