Diamond Knives

Diatome knives are compatible with all ultramicrotomes

The boat is designed in such a manner that the water is horizontal when the clearance angle is set. This results in a stationary water surface and good reflection.

The shape of the boat offers you the advantage of an easy pick-up of the floating sections.

The surfaces of the Diatome diamond knives are hydrophilic. This property allows an easy wetting of the cutting edge, even with a very low water level (important for sectioning Lowicryls and other hydrophilic embedding media, as well as for water sensitive samples).

The diamond is high vacuum brazed onto a metal shank which is securely screwed into the boat.

The cementing material seals boat and knife. It is hydrophilic and aids the easy wetting of the cutting edge.

Resharpened Diatome knives undergo the same stringent optical checking and sectioning test as new knives.

We let you choose: You may have your knife resharpened, or exchanged against a new knife at a slightly elevated price.A diamond knife resharpened by Diatome is the same high quality as a new one!

In the exchange price a type change is possible (ultra to cryo, 45° to 35°, small knives to large ones, etc).

We guarantee a fast resharpening service for all our knives including the oldest knives ever purchased!

Before delivery, each knife, new or resharpened, is subject to extensive testing. We can therefore guarantee perfect sectioning (in the repective thickness range) over the entire cutting edge.

Should a knife not fulfil your high expectations, please kindly send it back with a short note of the problem.

The great experience obtained during long years of development, manufacturing and use of diamond knives allows us to offer a unique sample testing service:

You send us biological or material research specimens of any nature.

We perform a sectioning test and send you the resulting ultrathin sections on grids, the surfaced sample, along with a report of how the results were obtained.

You may be assured that we treat your proprietary specimens with absolute discrection.

Please allow us to help you choose the appropriate knife type from our large range for your specific application.