Advice - All Scissors Including Barber Scissors, Thinning Scissors And

Left-Handed Hairdressing Scissors

How Do You Service Scissors?

Hairdressing scissors (including left-handed scissors) are taken apart and cleaned so that we can examine each blade under magnification to identify any damage.


If your previous sharpener used a bench grinder to grind away the expensive convex edges and replace them with cheap bevelled edges - we will tell you whether or not it would be possible to re-convex the hairdressing scissors/ left-handed scissors back to how they were when you first purchased them.  

All blade imperfections are removed with Japanese wet stones.  If we ascertain that the scissors are bent, we will determine whether the scissors can withstand pressure and undergo a re-shaping process.

The original manufacturers cutting angle is established so that we can ensure that the most minimal amount of metal is removed during the sharpening process.  We use a water-cooled machine to ensure scissors never over-heat.


The condition of the centre screw/thumb tensioner is assessed and if required, screws, washers, finger rests and bumpers will be replaced.

We use 2 grades of Japanese wet stones to hand sharpen the inside of each blade.  Blades are continually assessed under magnification so that we can identify the areas (nicks and damage) which need the most work; this is a lengthy process which produces highly polished edges.

We hand sharpen the outside of each blade on the most advanced high precision equipment in the world, designed exclusively to sharpen professional hairdressing scissors (including left-handed scissors) to factory sharpness.  The outside edges are honed and highly polished, using premium products to produce smooth sharp scissors with a mirror finish.

If necessary, tips are adjusted and reshaped by hand. They are then rounded off, de-burred and polished.

It is imperative that the hairdressing scissors are re-tensioned and balanced.


Lubrication is applied and worked into the scissors.  We then test the cut along the length of the blades, using a specially made fabric.


Lastly, the tips are tested on clean hair. 

Be Cautious Of Mobile Sharpeners:

Be careful with mobile sharpeners, because many do not spend enough time servicing valuable hairdressing scissors and do not sharpen them on the correct machinery; the majority of scissor sharpening machines used, cannot re-convex hairdressing scissors/ left-handed scissors - we always put a convex edge on convex scissors.


Would you rather have someone spending 10 minutes sharpening your scissors so that he can service as many scissors as possible in a day?




Would you rather someone take time and care with your scissors, spending between 20 - 30 minutes, professionally servicing them, removing the minimal amount of steel and guaranteeing that your scissors will cut like new and feel fantastic?


Who do you think would provide the best service?


We can guarantee you brand new scissor performance.


Many hairdressers have told us about their concerns, regarding mobile scissor sharpeners. They advised that not only was the noise incredibly loud (upsetting their clients), but they were unsure as to whether 10 minutes was enough to professionally service a pair of hairdressing scissors.  


THIS IS SHOCKING - we take between 20 - 30 minutes to professionally service one pair of hairdressing scissors/ left-handed hairdressing scissors!!    If a scissor sharpener is only spending 10 minutes on a pair of scissors - he is not servicing them correctly - ALARM BELLS SHOULD START RINGING.

Be Cautious Of Inexperienced Sharpeners:

An inexperienced scissor sharpener or one without the correct equipment, could shorten the life of your hairdressing scissors/ left-handed hairdressing scissors or even destroy them. Many scissor sharpeners create bevel edges on convex scissors, remove excess amounts of metal, over-heat scissors and burn the tips. Unfortunately, there are many sharpeners whose machinery does not convex hairdressing scissors; rest assured that we will re-convex your convex hairdressing scissors.

Why We Don't Use Freepost Envelopes:

Be cautious of sharpening companies who send out free post envelopes - as there is no way you can track your parcel to ascertain whether or not your scissors reached the sharpening company.  

We recommend that you send your hairdressing scissors to us via  Royal Mail Recorded Delivery (up to £50 compensation) or Royal Mail Special Delivery (up to £500 compensation). With both of these methods, you can track every stage of the delivery process.

Please note: To date, we have never had a Royal Mail Special Delivery go missing.

If your scissors are worth over £500.00 - Please phone for higher increments of insurance.

Once the goods have left our premises, the responsibility for the safe return of goods lies with the postal service.

The Difference Between Convex And Bevelled Scissors:



Most premium hair cutting scissors have convex edges, which have hand finished, razor sharp, highly sensitive edges and should be used for slide cutting, slice cutting, chipping and fan cuts. Convex hairdressing scissors will rapidly lose their sharp edges if used for blunt work or to cut thick sections of hair.

You must be extremely careful, when choosing someone to sharpen your expensive convex hairdressing scissors. Unfortunately, an exceptionally huge percentage of sharpeners, grind bevelled edges on expensive convex scissors, which completely alters the angle of the blades and seriously affects the performance of the hairdressing scissors/ left handed hairdressing scissors.




Bevel edge hairdressing scissors are cheaper than convexed scissors, they have a machine cut face along the cutting edge, have tough edges and are very nick resistant.  They are good for blunt/point cutting and for bulk hair removal.



If you have a pair of convex hairdressing scissors, which have been previously poorly sharpened and now have bevel edges, dependant on the damage, we may be able to re-profile the bevel edges back to convex edges.  We can advise you once we receive your scissors.

Dropping Hairdressing Scissors:

Dropping hairdressing scissors/ left handed hairdressing scissors is very likely to cause damage.  We can usually take out any nicks during the sharpening process. However, if the blades become bent, this may render the scissors irreparable.

We can re-shape some high-quality hair cutting scissors due to the temper of the steel, which is soft and more pliable.  However, there are some hair cutting scissors that are made from hard brittle steel, which will snap if re-shaped.

Preventing Repetitive Strain Injury:

RSI  - Repetitive Strain/Stress Injuries


Some hairdressers suffer from RSI because of reasons such as:  repetitive use of hands, poor posture and using poorly designed scissors.


Symptoms usually occur in the hand(s) and/or wrist(s) and can include:


Pain, aching, pins and needles, tingling, burning, loss of movement, swelling, numbness, loss of strength.


Early reporting of any of these symptoms is imperative; therefore if you suspect that you may be suffering from RSI, you must visit your doctor. 




It is crucial that your scissors are adjusted to the correct tension at all times.


Protect your hands from exertion by ensuring that your scissors are regularly serviced.


There are many scissors on the market which can assist with hand problems, do not use opposite handle hairdressing scissors and look for ergonomic designs. You do not have to use as much pressure when using convexed scissors as opposed to bevelled scissors.


You should be cutting with a straight wrist. Swivel scissors can assist in keeping your wrist straight because the rotating thumb ring means that the scissors can be moved into different positions, without awkward wrist movements. Offset scissors can also assist because this type of scissor does not force the thumb opposite the ring finger when closing and therefore allows the thumb more movement.

If You Do Not Regularly Check The Tension On Your Scissors, They Will Not Cut Correctly:

You should check the tension at the beginning of every day. 


Loose tension will cause the scissors to fold the hair at the tips; consequently, you will use extra pressure to solve this problem.


Tight tension will cause the blades to grind against each other; consequently, you will have to use more pressure to open and close the scissors.


Both loose and tight tension will damage the sharp edges, cause user fatigue and could lead to hand problems.



The Correct Tension:


Whilst the scissors are closed, point the scissor tips towards the ceiling.


Choose the blade that houses the finger rest and open this blade to form a cross; then release this blade.


The scissors should not close, and depending on whether you are left or right handed the blade should stop between the     1 and 2 o clock position   or   the 10 and 11 o clock position.  



Adjusting The Tension:


The blades must be closed when attempting to adjust tension.

More tension = clockwise            and           Less tension = anti-clockwise

Some long blades or scissors with a balance face insert may need to be tighter. No scissor should be looser.

If in any doubt, please do not hesitate to phone us.

Telephone: 07916 746173

Cleaning & Oiling Scissors:

You should clean and oil your scissors after every haircut, this will:

•        Make them cut better

•        Ensure longer lasting sharpness

•        Stop them corroding

•        Extend the cutting life of your scissors

•        Prevent build-up of debris and bacteria around the pivot area

Very carefully rinse your hairdressing scissors with warm water and carefully dry with a paper towel (do not rub the sharp edges with the paper towel), make sure you remove all hair and moisture; remember to pay particular attention to the screw/pivot area.

Use the tip of your oil dispenser to apply a thin line of good quality scissor oil along the scissor blades and apply a drop of oil to the screw/pivot area. The oil will help draw the hair out and will protect the screw by sealing out moisture.


If you are oiling scissors with a thumb tensioner; oil between the blades and on the back of the screw head.


If you are oiling scissors with a flat screw; oil between the blades and on the head.


Gently close and open them a few times to allow the lubricant to reach the washer.


Carefully remove excess oil and debris with a clean paper towel.

What Should I Do When I Get My Newly Sharpened Scissors Back?

It is very important, that you do not loosen or tighten the screw when we return your newly sharpened hair cutting scissors.  


The tension we set is the correct tension for your scissors and this must be always adhered to, in order for your scissors to cut perfectly.


When you get your hairdressing scissors back, get used to the sharpness and the feel of them. If you were previously pressure cutting with your blunt scissors, your newly sharpened scissors will feel different; however, you must be extremely careful not to use the same pressure, because this would quickly dull the sharp edges.


Don’t lend your newly sharpened hairdressing scissors, other people don’t care for them as much as you and they may pressure cut, which will blunt the sharp edges. In addition, they may alter the scissor balance and make them feel different after one haircut.  


You should be vigilant with your hairdressing scissors/ left handed hairdressing scissors because fresh edges are far more fragile than run in scissors.  

A Walker - Trading As Extreme Edge - 8 Willow Herb Walk, NR18 0XU