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Diamond Knives for Ultramicrotomy

(Sale within Germany and Austria only!)


Info, Media & Downloads


Free Customer Service
DiATOME performs free sectioning tests with biological and material research specimens of all kinds. You send us the sections along with the surfaced sample, and receive a report of the results obtained and a recommendation of a suitable knife. Complete discretion when working with proprietary samples is guaranteed.

Resharpening Service
A diamond knife resharpened by DiATOME demonstrates the same high quality as a new knife. Resharpened DiATOME knives undergo the same stringent optical checking and sectioning test as new knives.

Exchange Service
With the exchange price a change of knife type is possible (ultra to cryo, 45° to 35°, small knives to large ones, etc).



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.



Before delivery, each knife, new or resharpened, is subject to extensive testing. DiATOME can therefore guarantee perfect sectioning (in the respective 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.