PRODUCTS-6: Diamond Knife for Ultra-Microtome / Diamantemesser, Cuchillo de Diamante, Coltello Diamantato, 다이아몬드 나이프, 钻石刀

Sym Knife® (All knives are 100% crafted in Japan)

First of all, it is very glad you found this page.
You have been using other brand of diamond knife for a while, we are supposed to say.
If you are not satisfied with current situation including commercial distribution, there is a possibility that we will be the alternative and also better supplier for you than the other ones.


If you use “Ultra-microtome” on your lab or factory for getting ultra-thin sections or getting beautiful cross-section surface, our diamond knives will be definitely a good partner for you.
Our diamond knives are called “Sym Knife”. We have Ultra, Histology, Cryo and Trim types.
All knives are made in Yokohama, Japan by skillful artisans.
Syntek has been producing various kind of diamond tools more than 44 years (since 1978).
We would say, we have some know-how and experience how to produce good diamond tools.


One of the greatest advantages is all our diamond knives, except dry type have been done hydrophilic treatment well from the beginning.
You do not have to do it by yourself. It is very convenient and stress-free, isn’t it?


Plus, we have 3 original diamond knives at this moment. They are MGH, JUMBO, and JUMBO WT.
Those ones are made by Syntek only. Nobody does it.
Those useful knives are based in our customers' demands from the beginning.
You say we make your ideas come true. You will produce your own knife with us!
This is our biggest difference as other knife manufactures.

If you have any requirements or ideas, please let us know.　We will materialize your passion to be real.
The details of our diamond knives are as below.
Please take your time for getting some new information with Sym Knife.

Unique diamond knife Vol.1: "MGH"- One of your hands will be free

MGH is our strongly recommended knife for every ultra knife user.
It stands for "Multi Grid Holder" and nobody else makes this model as we explained as above.
This holder has 4 grooves (chases or ditches) on the surface.
There are places where you can set up to 4 grids at the same time.
Of course, experienced engineer uses this MGH, however we strongly recommend this model for beginners.
The main reason is this MGH releases your one hand free.
As you know you need to use both of your hands when you gather sectioned films into the grid, however it takes some time with skills.
If one of hands will be free, situation is going to be much easier than now.
No more stress for gathering samples. This is our target.

Unique diamond knife Vol.2: "SYM JUMBO" change plate's angle

We developed Jumbo knife for better using.
It is easier and more convenient for handling than your current using other maker's model, especially adjustable motion ours has.
Plus, it has several steps for arranging your glass plate's angle.
That's one small step for a man, one giant leap for microtome.
No more stress for your sectioning.

Unique diamond knife Vol.3: "SYM JUMBO WT"- Patent No.70150077

This is a totally new and useful knife for array tomography.
As far as we know, array tomography takes long time and expense for making 3D data.
You may also this is costs money method, too.
If you understand it is normal way, it might be better to think outside the box. It means, throw away ready-made ideas.

Our developed knife, it is called Sym Knife JUMBO WT reduces both total time for adjusting sections and budget for purchasing knife itself.
1. Setting: You can use your own plate. No wasteful items and expenditure.
2. Operation: It is very easily to control the speed of draining water by yourself.
No more (stressful…) syringe! One of your hands will be free, at last.
Even if you are not expert for taking care of this kind of water treatment gadget, you can use it unquestionably from the beginning.
3. Cost: You can set it on your existing ultra-microtome.

You don’t have to buy any other new and optional equipment to start.
Just prepare Sym JUMBO WT. That’s it. We don’t want to see the users have a tough time adjusting.
Simple, easy, and understandable. That’s what we want to do with JUMBO WT.
It can increase your productivity and success rate of ribbons adjustment.

Unique diamond knife Vol.4: "GHP"- Patent Pending right now

We modified above MGH a little bit after we have got many feedback by its users.
Sometimes MGH is difficult to collect section(s) on the grid because you need to induce until the grid holder by yourself.
If you use this GHP, by the way GHP stands for Grid Holding Plate, no longer induce actions, because you will catch section(s) from the front side.
Once you set your grid on this plate, you just wait for section(s) to come to the grid. That’s it.
Section(s) is(are) jumped on your grid almost automatically. You don’t have to do any specific actions.
It works both 1 or 2 big section(s) and ribbons. Such a marvelous gadget it is!
You will get your section(s) by scoop method in this way. It means you can avoid wrinkles and breaks of your section(s) at the same time.
You would say this is the incoming item of MGH.

Unique diamond knife Vol.5: "Marking Knife" for serial sections

When you get many sections at the same time like array tomography, sometimes it is difficult to collect sections in the order.
Especially once ribbons are broken by accident sections are separated into many different directions.
You probably recover the order A to Z on your computer, however if those sections have a tiny spot(mark), your serialization task will be easier and faster than nothing.
This marking knife makes the above actions true. Don’t get lost anymore. Just go straight ahead.

Unique product Vol.6: "Karate Groover" cut your plate on your size

How do you cut your glass plate, sapphire plate or silicon wafer at this moment?
Do you have any special cutters? Or do you cut them by hand?
In the latter case, cutting sizes are not always the same, are they?
Sometimes they are OK, but the other time each piece has a different size.
If you don’t mind small differences, you don’t need this equipment, either.
If you would like to get the same sizes at a time, this Karate Groover hits the right nail.
Or if you are the Karate master with a black belt, you may cut plates whatever you want by your karate-chop.

Cleaning method: "How to clean up on the edge?"

Some people clean up the diamond every time after usage, but some others don't.
How often you should do it? We say it is better to do it every time than sometimes.
What is the specific reason!? If you question the wisdom of that way, see the video as below.

Full Product Lineup of Syntek's Diamond Knife

*When you ask "exchange" if holder is reused like our Jumbo, WT, Trim and MGH, only blade part will be new.
Don't use "organic solvent" for above 4 types of knife, because fixing method is unsuitable for solvents.

Images of SYM Knife: Our Histo and Trim knives are suitable to hard samples

Ultra Wet: 35° & 45°	Cryo Dry: 35° & 45°
Histo Wet: 45° & 50°	Trim: Cryo & Room Temp.
Multi Grid Holder / Only from Syntek	Grid Holding Plate / Only from Syntek
Cross-section: Glass-fiber	Mouse: taste bud
Cross-section: Color contact lense	Mouse: Testicle
Cross-section: Copper cylinder surface	Mouse: Cardiac Muscle

Our official partners: "They will support you a lot!"

We have an official agents in Korea, Hong Kong(+ China), Poland, Germany, Spain India and Taiwan.
If you live in those countries and also are interested in our diamond knives, can you ask them first?

For Korean customers
     

For Chinese customers
     

For Polish customers
     

For German, Austrian and Swiss customers
     

For Spanish customers
     

For Indian customers
    

For Taiwanese customers
  

Bits of knowledge for superstitions

Some people are believing, or they are believed, diamonds of all diamond knives are made by natural stone.
Basically, we don’t want to say things that will shatter their dream.

On the other hand, we also have a duty to tell the truth to all users.

If you are told “Our diamond is natural” by your provider and your knife width is 3.0mm or more, you would better to doubt about that information.

We do not say the stone is synthetic (artificial / man-made), but if you create wider knives(means more than 3.0mm), the raw stones may cost more than your purchasing price.

Or that maker selected very low-grade raw stones.

<pIt is possible to produce natural diamond knives from Syntek, however it will be 2.0mm or less if you considering the current market price.
Our raw stones are selected top or second top quality grades.
That might be one of the reasons, nevertheless you should be careful.

Please see the details are as below.

5. Superfine Processing | 7. Other Processing