Touch Point (触点)

Touch Point (触点, しょくてん / Shokuten)

Quick look

• What it is: The single moving point where the two blades physically meet during closing
• Behavior: Travels from the heel (near the pivot) toward the tip as the scissors close
• Precision requirement: Within ±10μm, or professionals will notice degraded cutting performance
• Japanese term: 触点 (しょくてん, shokuten)

Why it matters

The touch point is where cutting actually happens. At any given moment during a closing stroke, the two blades meet at exactly one point along their length. This point travels progressively from the heel toward the tip, shearing hair in a smooth, continuous action as it moves.

This traveling contact is made possible by blade curvature (反り, sori), the subtle lengthwise bow built into each blade during forging. The curvature ensures the blades cannot touch along their full length simultaneously, forcing them to meet at a single, precisely defined location that advances with each degree of closing.

The precision demanded is extreme. A deviation of just ±10μm (ten millionths of a meter) at the touch point is enough for a professional stylist to notice that something is wrong. The cut feels less clean, hair folds instead of shearing, or the scissors develop a subtle catch at certain points in the stroke. This is why blade alignment, curvature, and tension all interact so critically. A problem with any one of them shows up as a degraded touch point.

When a sharpener checks scissors, assessing the touch point is one of the first and most important steps. They close the blades slowly and watch how light passes between them, looking for even, progressive contact from heel to tip. Gaps, inconsistencies, or simultaneous contact across multiple points all indicate problems that must be corrected before sharpening can be effective.

Related: Blade Curvature

Hit Point

Ride / Half-Moon

Sources

1. Professional scissor sharpening and alignment methodology
2. Japanese precision blade manufacturing tolerances