The corners must be mitred, and the moulding fastened on with fine brads, which must be set (see Nailing and nail-set).
It can be fastened with fine nails (see Nailing and nail-set).
Do not use a file for a nail-set, for the end is too hard and will dent the face of the hammer-head.
Nails are usually "set," that is, the heads are driven with a nail-set below the surface.
This shelf can be simply put together by nailing, setting the nails carefully (see Nailing and nail-set).