Explanatory notes
… of headings 84.57 to 84.65, or of heading 84.79 by reason of Note 8 to Chapter 84, (C) tools of heading … attached to a base metal support either permanently, by welding or insetting, or as detachable parts. In the … more working parts (blade, plate, point) locked to the body by a device comprising, for example, a bridge plate, a …