Flat Comb

Flat Comb (フラットコーム)

Quick look

  • What it is: A thinning tooth profile where all teeth are the same height and width, evenly spaced
  • Grip strength: Moderate; even engagement across the full width of the blade
  • Best for: Uniform weight removal across the cut section
  • Result: Predictable, consistent thinning with no variation in cut rate along the blade

Why it matters

The flat comb is exactly what the name suggests: uniform teeth of equal height, width, and spacing arranged in a flat, even pattern. Every tooth engages the hair at the same moment during blade closure. Every gap between teeth lets the same amount of hair pass through uncut. The result is completely even weight removal from one side of the section to the other.

This simplicity is the flat comb’s strength. There are no surprises. The cut rate is the same at the base of the blade as it is near the tip. If you close the shears on a section, you know exactly how much hair will be removed and where. For stylists who want a straightforward, reliable thinning tool, the flat comb delivers without any learning curve.

Where you will find it

Flat comb profiles are the standard in many mid-range thinning shears. They are common in salon starter kits and student scissor sets because the predictable behavior makes them easy to teach with. Many barber thinners also use flat comb teeth, where the goal is even bulk removal rather than subtle blending.

Limitations

The even cut pattern means flat combs can leave more visable line marks than step comb or mushroom tooth designs. Because every tooth cuts at the same point, the boundary between thinned and unthinned hair is sharper. On fine hair, this can create a visible step that needs additional blending. On thick or coarse hair, the marks are typically hidden within the bulk of the style.

For precision blending work or clients with fine hair, consider pairing a flat comb with a softer profile for finishing passes.

V-Tooth Mushroom Tooth Step Comb Thinning Shears

Sources

  1. Hair Scissors Complete Guide, Chapter 10: Thinning & Texturizing Scissors
  2. KAMIU (kamiu.jp) thinning tooth type documentation

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