Drilling for undercut Bolts
In order to achieve easy and secure fixing of the undercut anchors, special undercut drilling bits needs to be made on the rear surface of the panels. This must be done with great care as any incorrect drilled holes will prevent the firm attachment of the undercut bolts on to the panels.
Undercut drilling is done using special drill bits with wet machining system. Machines and drill bits can be supplied by HAZ.