Blunt Cut

Blunt Cut (ブラントカット)

Quick look

What it is: Cutting hair straight across at a consistent angle to create a clean, defined line
Also called: One-length cut, bob cut foundation, line cut
Key requirement: Decisive, full blade closure with no hesitation
Best scissors: Straight blade or sword blade, beveled or semi-convex edge, 5.5 to 6.0 inch

Why it matters

The blunt cut is the foundation technique. Every other cut builds on top of it. Bobs, one-length shapes, and geometric work all depend on your ability to close the blade cleanly through hair without deflection or drag.

Precision here comes from blade geometry, not from force. A straight blade gives you a predictable cutting line because the blade edge runs parallel to the section. Sword blades work well too, especially for thicker hair, because the extra mass near the pivot keeps the blade stable during closure.

Edge type matters more than most stylists realize. A beveled edge grips the hair slightly as it cuts, which prevents slipping on coarse textures. A semi-convex edge splits the difference between grip and glide. Pure convex edges can push fine hair forward on blunt lines, so they’re not always the best choice for this technique.

Recommended scissors

Feature	Recommendation
Blade type	Straight or sword
Edge type	Beveled or semi-convex
Size	5.5 to 6.0 inch
Handle	Offset or classic for wrist comfort during repetitive line work

Technique notes

Section tension is everything. Uneven tension creates uneven lines regardless of how good your scissors are. Hold sections with consistent finger pressure and cut in a single confident closure.

Avoid “chewing” the line by opening and closing mid-section. One clean close per cut. If you need to reposition, open fully, reposition, then close again.

For bob work, the hit point alignment becomes critical. If your blades aren’t contacting cleanly from heel to tip, you’ll see micro-steps in the line that no amount of cross-checking will fix.