The Heiniger Diamond is a run-in shearing cutter designed to enter tightly packed wool. It gives shearers a specific cutter option when the fleece is less open and entering the wool cleanly is a key part of the job. Heiniger identifies the prepared cutting edges as an important feature of the Diamond's design.

This is manufacturer item 714-011, with a specified thickness of 3.7 mm. It is the cutter component of a shearing system, so selection should take account of the comb and handpiece already being used. The Diamond name, run-in designation and thickness identify this version when replenishing a cutter supply. Fit and adjust it according to the handpiece instructions.

Between shearing sessions, clean the cutter, dry it completely and protect it with oil. Store it in a dry location to reduce rust formation.