Shears that cut hair rather than push it

Why hairdressing shears go dull the way they do

Hair does not wear hairdressing shears out — hair is soft. Friction of steel against steel does. The two blades run against each other all day: the cutting edge rolls over to one side, the ride line polishes smooth, and the screw works loose by a fraction. The pair still looks immaculate, but it no longer takes hold of the hair. The rest comes from whatever finds its way between the blades: a clip, a band, a drop onto a tiled floor, dry cutting driven with force. Each leaves a chip you can barely see but feel on every cut.

What the wear looks like

A rolled edge shows up in the salon as pushing: the hair escapes ahead of the blade and folds over instead of being cut. A chipped edge announces itself as a skip in the same place every time, where a few hairs always come through uncut. Wrong shear tension shows differently: the shears close on their own or catch as they open, and towards the end of the stroke the blades part and fold the hair. On thinning shears the wear shows as uneven removal, because the flat blade no longer sits against the toothed one.

Convex and bevel edges are not the same job

Convex-ground shears carry a gently curved bevel with no sharp transition, and it is that shape which gives them their quiet, sliding cut. Push such a pair across a wheel at a flat angle and it comes back with a flat bevel: it will cut keenly for a week, then start crushing hair, and the original geometry cannot be restored. Bevel-edged shears want the opposite — one consistent angle along the whole cutting edge and a clean microbevel. So every pair is first read for what its maker gave it, and the work follows that.

The ride line is left untouched. That is a rule without exceptions: grind it and the damage cannot be repaired, because from then on the blades can never meet again. The pair will fold hair no matter how keen the cutting edge is.

What correct sharpening restores

Servicing a pair is not one pass across a wheel. The shears are stripped and cleaned — the pivot collects a paste of hair, spray and oil that ruins the action by itself. Both blades are sharpened in stages, from coarse to fine grit, at a controlled angle and with cooling so the steel does not lose its hardness; overheated steel is not repaired by any later sharpening. The burr is removed and the bevel finished by polishing, because a smooth bevel tears less. Finally the pair is reassembled and set to a tension at which the blades stay together through the stroke and the shears do not close under their own weight.

How often sharpening is realistically needed

The measure is not the calendar but hours in the hand and how much dry cutting is involved: a pair worked several hours every day comes round more often than one kept in rotation. Do not wait until the shears fail outright — the further the edge is worn, the more material has to come off and the shorter the pair’s remaining life. Between services, do not touch shears up with consumer sharpening gadgets; on hairdressing shears they do more harm than good.

Before you drop the tools off or post them

Gather every pair at once, including the ones in the drawer nobody reaches for any more. Wipe the shears dry, clear the hair out of the pivot, and send them assembled and closed with their original screw; the blades are a matched pair and are never sent separately. Send clipper blade sets complete. Wrap each piece on its own, never as a bundle. Say how you work with the pair — dry or wet cutting, slide cutting, a lot of texturising — and whether it has been sharpened before and by whom. That tells more than a photograph. Arrange drop-off at Ferrarska ulica 14 in Koper in advance via +386 51 659 600 · igor.komadina@t-2.net; the same address applies for post.