Scissor Anatomy — Every Part, and What It Tells You

Almost every fault a scissor develops has a name, and knowing the names makes it much easier to describe what is wrong — to a sharpener, to a supplier, or to yourself before you spend money you did not need to. This is the working vocabulary, written from the bench rather than a catalogue.

The parts, tip to bow

• Tips (points). Where precision work happens and where damage happens first — a dropped scissor almost always lands on the tips.
• Blades. One blade moves and one stays still relative to your hand. They are not identical, which is why a scissor cannot simply be flipped for a left-handed cutter.
• Edge. The cutting line itself. On a convex edge it is a continuous curve, which is what allows slicing and slide cutting; on a bevelled edge it is a flat facet, which cuts but will not slide cleanly.
• Ride (or hollow). The contact line where the blades meet. Ground slightly hollow behind the edge so the blades touch at one travelling point instead of dragging along their whole length.
• Joint and pivot. Where the two halves meet and rotate.
• Tension screw. Sets how firmly the blades press as they pass. The single most misunderstood part of a scissor.
• Shank. The arm running back from the joint to the handle.
• Bows (finger rings). What you actually hold. Offset bows sit the thumb lower than the fingers; a crane drops it further again.
• Tang (finger rest). The hook under the little finger. It steadies the scissor — and on most models it unscrews, so it can be removed or swapped.
• Bumper (silencer). The small cushion that stops the blades meeting metal-to-metal at the end of the stroke. A consumable — replace it when it wears.

What the parts tell you when something goes wrong

Folding or pushing hair. Nine times out of ten this is tension or the ride, not bluntness. A scissor with a worn ride cannot hold the blades together in one point, so hair slips ahead of the edge.

A clicking or knocking close. Usually a worn bumper. Cheap to fix, and worth fixing before it costs you tension.

Damage at the tips. Almost always a drop. Whether it is saveable depends on how much steel has to come off to make the tips meet again.

Drag through the stroke. Over-tightened tension, or a burr left on the ride by a grinder that did not hollow it correctly.

Related reading

How to set tension properly · Why a scissor folds or pushes hair · Blade geometry · Handle types · Full glossary · All comparisons

Common questions

What are the parts of a hairdressing scissor called?

From the tip down: the blades (a moving blade and a still blade), the edge itself, the ride or hollow where the blades meet, the pivot and tension screw that holds them together, the shanks running back from the joint, the bows or finger rings you hold, the tang or finger rest under the little finger, and the bumper or silencer that stops metal hitting metal on closing.

What is the ride on a pair of scissors?

The ride is the contact line where the two blades touch as they pass. It is ground slightly hollow behind the edge so the blades meet in one moving point rather than rubbing along their whole length. A scissor that folds or pushes hair has usually lost its ride, its tension, or both — not necessarily its sharpness.

What does the bumper or silencer do?

It cushions the blades at the end of the closing stroke. Without it the blades slam metal to metal, which dulls the tips and loosens the tension over time. It is a consumable — it wears down and should be replaced, not ignored.

Why does the tension screw matter so much?

Tension sets how firmly the two blades press together as they pass. Too loose and the hair folds between the blades instead of being cut; too tight and the scissor drags, tires your hand and wears the edge fast. Most scissors that feel blunt are actually out of tension.