Sharpening 2
For I am not ashamed of the gospel, for it is the
power of God for salvation to everyone who
believes...
Romans 1:16
I am Gabriel. I have been blessed by Jesus Christ
with a passion for sharpening hairdressing scissors.
I am what you could call a professional sharpener of
hairdressing scissors.
You might need me as a sharpener on occasion, but
we all need Him - always and forever!
Jesus Christ and the Art of Scissor Sharpening
blade tip
blade exterior (convex)
blade interior (concave or hollow)
ride
screw mechanism
bumper or silencer
finger-ring
finger inset
finger rest (sometimes screw-in type)
Popular scissor terms
indicated on a pair of
imitation Kasho scissors
external (convex or ‘tear-drop) of blade
internal (concave or hollow ground) of blade
the ride
cutting edge
100% horizontal plane
Sharpening
After receipt of your scissors I inspect them,
take them apart and clean them.
I then enter unique markings with a very fine
diamond drill and enter the particulars in a
database.
If damage necessitates grinding on the outside
blades, this is done.
Thereafter the rides are re-done.
Then I polish the outside edges - a process
which also sharpens the blades.
Before reassembly I check each blade on a
couple of points for sharpness - the test is it has
to hack into my thumbnail under its own weight
at a 20 degree angel. If I can see an edge, there
is no edge, in other words they are still blunt!
Then I clean them, oil them, set and balance
them and before packing them I test them on
human hair. They must be able to dry-slice up to
the very tip.
The final test is the ‘acoustic’ test - they must
make a very smooth ‘swish’ sound when opened
and closed very near my ear.
The entire process is done under very good light
conditions whilst frequently checking progress
under a strong back-lighted magnifier and a if
needed a digital microscope.
outer blade
ride line
cutting edge
inner blade
(concave/hollow ground
can be clearly seen)
(10x magnification Celestron digital microscope, KIV 5.5 KASHO scissors)
(not according to scale)
The Ride - one of the crucial and most
underrated parts.
The ride is the edge of the concave of the
inside blade.
It is essential for clean and efficient cutting
and allows the cutting edge to be made very
sharp.
It also protects the blades of good scissors to
‘hack’ into each other and thus creating a
‘nick’ which you can hear and feel and which,
if not addressed immediately, might cause
intense damage.
Most sharpeners don’t pay attention to the
ride as working on it is a specialized, time
consuming and exact process.
During sharpening the ride must be re-done,
when there is no ride, either because
previous sharpeners destroyed it or it has
never been there (cheap manufacturing).
Re-doing the ride is done by taking the
scissor blades apart and whilst lightly pushing
them with the concave side, making sure they
are kept 100% flat, against two or more fine
grit Japanese water-stones or whetstones
whilst these are wet.
I first take the 900 grit stone and give the ride
a polished surface with a 4000 grit stone
afterwards.
The image to your right is a highly enlarged
cross section of a closed pair of Kasho
scissor blades and should give you an idea.
Scissor Anatomy
Although this is not a course on scissor
sharpening, some basics have to be stated in
order for us to at least speak the same
language. The image should sort out this
issue.
All sharpening is guaranteed for 14 days (postage excluded) unless repair is attempted by a
third party, the scissors have been dropped or cutting of something other than human hair
has resulted in a nick on the edge, so treat your scissors with respect!