Shear maintenance
Adjusting Shear Tension
Tension controls how the two blades meet. When it is off, even a sharp shear can fold, push, or pull hair.
Why tension matters
Shear tension is the amount of pressure holding the blades together as they close. If the screw is too loose, hair can bend between the blades instead of cutting cleanly. If it is too tight, the shear can feel heavy, rough, or tiring in the hand.
- Loose tension can make hair fold or push away from the edge.
- Tight tension can make the shear feel dull even when the edge is still usable.
- Correct tension helps the blades meet cleanly from heel to tip.
What to look for
A tension problem usually shows up as a change in feel. The shear may still look fine, but the cut starts becoming inconsistent.
- Hair folds instead of cutting.
- The blade pushes hair forward.
- The shear pulls or grabs hair near the tip.
- Your hand works harder than normal to close the blade.
How to check it safely
Open the shear, raise one handle, and let it close naturally. A properly set shear should not slam shut, but it also should not stay wide open. Make small tension adjustments and test again before cutting hair.
- Adjust in small increments.
- Oil the pivot before judging the final feel.
- Stop if the screw, ride line, or blade feels damaged.
Questions
Can tension make sharp shears feel dull?
Yes. If the blades are not meeting correctly, the shear can fold or push hair even when the edge is not the main problem.
Should I keep tightening until the shear cuts?
No. Too much tension causes drag and hand fatigue. Adjust gradually and stop if the shear feels rough or forced.
When should I send shears for service?
Send them for service if tension adjustment does not stop folding, pushing, pulling, or rough cutting.
Need the shear inspected?
If cleaning, oiling, and tension checks do not fix folding, pulling, or rough cutting, one-time sharpening can get the tool back into working condition.