Working unit for injection moulding or press tool - has outer cylindrical ring member in receiving bore hole

摘要

A marking unit for an injection moulding or press tool, for working plastics, includes an outer cylindrical ring member located in a receiving bore hole, which has markings and which has a coaxially arranged central member. The cylindrical member has a protruding ring band, and a penetration extends over the whole axial height of the band. A locking projection is located on the central unit. ADVANTAGE - The unit is simple in construction and the central member is easy to change over.