My house is a Barrat built 2007. We're trying to fit recessed venetian blinds but we cannot get a drill to go any further than through the palsterboard. The lintel is absolutely solid and both masonry and metal drill bits are just winding round on it making big holes in the plaster board!
Does anyone know if there's a special drill bit we need or something?
Does anyone know if there's a special drill bit we need or something?