Lach Diamond Inc. developed «mini-contour» machines, a special sharpening machine that can produce high-precision concave and convex profiles from 2 to 4 µm and is suitable for re-sharpening the company's »contour-profiled« grinding wheels.

In addition, «mini-contour» machines are available for service or purchase, both for manufacturers and end customers. The «mini contour» sharpening machine enables the EDG procedure.