Pairs of knives and limiters for the Whitehill panel raising head. Made from high speed steel (HSS). Should the profile you require not be available, then special profiles can be ground (see diagram for the maximum profile area). Details of special profiles, as fully dimensioned as possible, should be supplied by letter or, alternatively, a sample of the moulding should be sent with the order. Knives are handed and will only cut in one plane.