Shears that go unchecked don't just get duller — they get dangerous. A nicked blade snags hair, a loose pivot throws off your tension, and a misaligned edge forces you to compensate with technique instead of the tool doing its job. A five-minute inspection routine catches most of this before it costs you a client's haircut or a trip to the repair shop.
Here's a practical rundown of what to check, how to check it, and when a problem calls for professional service instead of a DIY fix.
Quick Inspection Checklist
- Blades: Look for nicks, chips, or dull spots under bright light. Run a paper-cutting test at a 45-degree angle — snagging or tearing means the edge needs sharpening.
- Handles and screws: Check for cracks, loose screws, or tension that's drifted off. Stiff or uneven movement usually points to a tension problem.
- Blade alignment: Open and close the shears slowly. Gaps or uneven contact along the blade length mean they're out of alignment.
- Cleaning and lubrication: Wipe blades down daily and oil the pivot every few days if you're using them heavily.
- Storage: Keep shears in a case or holster when not in use to prevent drops and impact damage.
Plan on professional servicing every 6–12 months, more often if you're cutting high volume. Shears made from higher-grade steel generally hold an edge longer and need less frequent sharpening, but they still need the same routine checks.
Step 1: Visual Inspection
Check the Blades
Inspect the cutting edges under strong, direct light. Nicks, chips, and dull patches are easiest to spot this way — they'll usually catch the light differently than a clean edge. Run your paper test here too: hold the shears at a 45-degree angle and cut through a strip of paper. Clean, effortless cuts mean the edge is fine; snagging or tearing means it's time to sharpen.
Check the Handles and Screws
Look for hairline cracks in the handles and confirm the tension screw is snug but not stripped. A screw that won't hold tension, or handles that flex under normal grip pressure, are both signs the shears need a service visit rather than a home fix.
Step 2: Test Blade Alignment
Open and close the shears through their full range of motion under good lighting and watch for:
- Grinding or scraping sounds
- A "jumping" or catching sensation partway through the stroke
- Resistance that isn't consistent from base to tip
- Blades that don't move smoothly together
A well-made pair should move through its full range without catching or sticking.
| Symptom | Likely Cause | What to Do |
|---|---|---|
| Grinding noise | Blade friction or poor adjustment | Get it serviced professionally |
| Jumping blades | Misalignment | Stop using and inspect immediately |
| Resistance | Tension issue | Adjust the tension screw |
| Uneven movement | Bent blade | Send to a repair specialist |
Also hold the shears up to a light source and check the gap between blades along their full length — they should meet evenly. If you spot a gap, don't force the blades together; that usually makes misalignment worse. Take them to a repair tech instead.
Step 3: Test Blade Sharpness
Dull blades cause uneven cuts and can put unnecessary strain on the hair. The paper test is the fastest way to check: hold the shears at a 45-degree angle and cut a thin strip of paper in one smooth motion.
| Issue | What Happens | Effect on Haircuts |
|---|---|---|
| Snagging | Blade catches on the paper or hair | Uneven, choppy cuts |
| Tearing | Paper tears instead of cutting cleanly | Split ends and hair damage |
| Bending | Paper folds instead of cutting | Inconsistent, imprecise lines |
If any of these show up consistently, it's time for a sharpening appointment rather than pushing through with a compromised edge.
Step 4: Know When to Repair vs. Maintain Yourself
Daily care prevents most of the problems that eventually require professional repair.
Daily and Routine Care
- Wipe blades clean with a soft brush and mild soap after each use, then dry thoroughly with a lint-free cloth.
- Avoid harsh chemicals or abrasive cleaners — they'll dull and pit the finish.
- Add 2–3 drops of shear-specific lubricating oil to the pivot every 2–3 days with regular use, working it in by opening and closing the blades before wiping off the excess.
- Check tension by opening the shears halfway: if they fall closed on their own or feel stiff, adjust the tension screw before your next cut.
When to Call a Professional
| Problem | How to Spot It | Impact |
|---|---|---|
| Nicks, dents, or scratches | Visible under light | Reduces cutting precision |
| Misalignment | Uneven blade contact or visible gaps | Causes pulling and tearing |
| Severe dullness | Fails the paper cutting test | Produces uneven cuts, damages hair |
| Tension problems | Blades feel too loose or too tight | Reduces control and accuracy |
Step 5: Store Shears to Prevent Damage
| Storage Method | Benefit | Best Practice |
|---|---|---|
| Protective case | Shields against scratches and impacts | Keep it clean and dry to avoid rust |
| Holster | Convenient access while working | Use blade covers for extra protection |
| Dedicated drawer | Keeps your station organized | Store separately from other tools to avoid nicks |
When placing shears in a case, lay them flat rather than resting on the tips — pressure on the points can throw off alignment over time.
When Should You Replace Your Shears?
Repair and maintenance only go so far. Consider replacing your shears if:
- They keep loosening during use, even after retightening.
- Blades are misaligned and adjustments no longer fix it.
- Cracks or chips are visible and affecting performance.
- Repair costs are approaching or exceeding half the price of a new pair.
When it's time to invest in a new pair, higher-grade steel and solid construction pay off in edge retention and fewer trips to the sharpener. Look for a warranty against manufacturing defects — it's a good signal of how the maker stands behind their build quality.
Bottom Line
A quick inspection routine — checking blades, alignment, sharpness, and tension, then cleaning and storing properly — is the cheapest insurance you have against costly repairs and inconsistent cuts. Build it into your daily workflow and your shears will last years longer.
Ready to upgrade? Browse Shihan Shears' hair cutting shears collection for professional-grade tools built to hold an edge.