The unique modular design and absolute strength of the LIEBIG ULTRAPLUS undercut anchor needs little introduction. Designed for use in applications where reliability and safety are critical, e.g. for anchoring safety relevant components in nuclear power plants, for industrial plants, conveyor systems, cranes and also for special civil engineering solutions. After the hole is drilled, a separate undercut is created using the LIEBIG undercutting tool. When the anchor is inserted through the fixture, spring pressure opens the expanding segments. These lock into the undercut with a clearly audible click. The result is a mechanical interlock without expansion stresses. By applying the specified torque, the fixture is fastened in position. The “positive undercut” allows perfect bearing of the segments and ensures reliable transmission of the load into the concrete.