Manufacture of cases, inserts and holders are made of hardened steel with a precision of 0.01 mm .The cases&holders is usually an integral part of tungsten carbide dies. Transmission tolerances and Coincidences in order to put dies and holders into cases have great importance & accuraceThat otherwise die life is reduced.

The company try to produce the dies cases&holders with the lowest tolerances and the most of the center and orthogonal and surface flat.