Datasheet

Combination whetstones
The DC3 and DC4 sharpeners are newly
developed combination whetstones,
where one side (the bright one) is a
ne diamond whetstone (25 micron),
and the other (the dark one) is a ne
ceramic whetstone. A leather case is
included. The yellow surface consists of
titanium aluminum nitride (TAN) which
considerably prolongs the functional
life of the whetstone. We recommend a
combination of diamond and ceramic,
where the diamond whetstone restores
the wedge form of the blade edge and
the ceramic whetstone smoothes the
edge to obtain long-term sharpness.
Most of the time the sharpness provided
by the diamond whetstone is more than
enough.
DC521 is a bench stone of a less common
category, since it offers two different kinds
of stones. The yellow part is a fast and
aggressive diamond stone, while the
dark is a slow, very ne ceramic stone.
Both surfaces are precision at, which
is a prerequisite for perfect sharpening
results. The diamond stone works fast
and should be used if the edge is very
thick. The sharpness obtained is usually
enough for everyday tasks. The ceramic
whetstone works slower and gives
a smoother, razor-sharp edge when
necessary. For tools and chef knives, this
bench stone is among the best we can
offer. It comes in a nice gift box.
DF24
If you haven’t tried this diamond stone,
you have a pleasant surprise in front of
you. This lightweight, handy sharpener is
incredibly good at sharpening all kinds of
cutting tools because of the good handle.
Diamonds deliver a really good edge on
any blade steel you try it on, no problems.
In addition, you don’t need to mess with
oil or water and if you think the DF24
feels soft, wash it off with warm water
and some detergent. At rst, the diamond
stone is a little rough but after a short
break-in period, it delivers a very smooth
and sharp edge, good enough for almost
all purposes. The diamonds are held in
place in the matrix by a layer of titanium
aluminum nitride which greatly extends
the life of the sharpening stone.
Fine sharpening steel
Model D12 is an oval, ne diamond
sharpening steel for use with kitchen
knives. The C12 steel is ceramic and is
used after the diamond steel to obtain a
long-term edge. We recommend these
steels, since we know they work on all
type of knives, especially knives with
blades of special steel or powder steel.
How to sharpen the knife
When a knife becomes dull, the wedge
form of the edge has become so rounded
that its original appearance must be
restored before the knife can cut again.
This can be managed for a long time with
a whetstone, but eventually the angle
needs to be reset. This is done with the
help of a grindstone or belt driven knife-
grinder, both water-cooled.
How to use the whetstones
Lay the blade at on the whetstone, raise
the ridge of the blade by its own thickness
and move the blade in circles or gures
of eight. Alternatively, try cutting thin
slices from the whetstone! Impossible,
of course, but now you are holding the
knife at the right angle and making the
right movement. Start with the diamond
whetstone, and nish with the ceramic
whetstone.
The ink trick
It can be difcult to see where on the
edge the whetstone is working, but the
following trick can make it much easier.
Color the edge with a marker or similar
and it will immediately be easier to see
exactly where the sharpening occurs.
Test the sharpness
The best way to check the sharpness is to
draw very lightly the edge on a ngernail.
You can feel directly whether the knife is
sharp or not, and this is a fairly safe way
to test the sharpness.
Convex edge
Several of our knives have a convex edge
(axe edge). This kind of edge can seem
difcult to sharpen. However, if you use
a handheld diamond whetstone and the
above mentioned ink trick, it is fairly easy
to sharpen the convex edge, but as with
everything, practice makes perfect.
Grinding service
After some years’ active use, the edge
nally becomes so thick that the blade
needs to be re-ground, that is, slimmed
down so that you can continue to use a
whetstone or steel on your knife. If you
do not have access to machines or the
know-how to do this, you can send the
knife to us for re-grinding. We grind the
knife in-house, restoring it practically to
the original form and nish.
Whetstones & Accessories