Subclass 1/16: Hand-held nailing tools (hammers B25D; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F 5/00; nailing machines B27F 7/02); Nail feeding devices therefor operated by combustion pressure generated by detonation of a cartridge Cartridges specially adapted for impact tools; Cartridge-and-nail units (bolts or the like for shooting into concrete constructions, metal walls, or the like by means of detonation-operated nailing tools F16B 19/14)